diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d33523fb8f26..8f22bfb42b0b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -30,7 +30,7 @@
   "handwritten/logging-bunyan": "5.1.1",
   "handwritten/logging-winston": "6.0.1",
   "handwritten/pubsub": "5.3.0",
-  "handwritten/spanner": "8.7.0",
+  "handwritten/spanner": "8.7.1",
   "handwritten/storage": "7.19.0",
   "packages/gapic-node-processing": "0.1.8",
   "packages/google-ads-admanager": "0.5.1",
diff --git a/changelog.json b/changelog.json
index 6e4300578aca..4ce8570e3d33 100644
--- a/changelog.json
+++ b/changelog.json
@@ -1,6 +1,67 @@
 {
   "repository": "googleapis/google-cloud-node",
   "entries": [
+    {
+      "changes": [
+        {
+          "type": "fix",
+          "sha": "9fd76eff87b1cf02db6205f141449b31e8ab7d8f",
+          "message": "Bump all node submodules",
+          "issues": [
+            "8178"
+          ]
+        },
+        {
+          "type": "fix",
+          "sha": "4c33205869fc81a0ebd60604c3f91fe90b87ecea",
+          "message": "Clear metrics tracers after operation completion",
+          "issues": [
+            "8172"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "fix",
+          "sha": "0dd9a53aa825d08c106928f88d72ff931f839b1c",
+          "message": "Disable metrics tracer when built-in metrics are disabled",
+          "issues": [
+            "8170"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "fix",
+          "sha": "9e91cc8b68973b546f1fb94b1c39951c395f5a2b",
+          "message": "Record fractional latency metrics",
+          "issues": [
+            "8168"
+          ],
+          "scope": "spanner"
+        },
+        {
+          "type": "fix",
+          "sha": "c1a03fe604662091be283055c7d34052c64d6334",
+          "message": "Change the copyright year for files in the packages folder",
+          "issues": [
+            "8109"
+          ]
+        },
+        {
+          "type": "fix",
+          "sha": "8e31dd7b8afb0a2fb6e1d6809fee7d9cd21370c8",
+          "message": "GetTransaction type with options, cb",
+          "issues": [
+            "8045"
+          ],
+          "scope": "spanner"
+        }
+      ],
+      "version": "8.7.1",
+      "language": "JAVASCRIPT",
+      "artifactName": "@google-cloud/spanner",
+      "id": "a5e4c00a-94e9-42fb-96e8-8b7c29c58d82",
+      "createTime": "2026-05-06T21:35:08.503Z"
+    },
     {
       "changes": [
         {
@@ -77687,5 +77748,5 @@
       "createTime": "2023-01-28T04:18:24.718Z"
     }
   ],
-  "updateTime": "2026-05-06T18:07:28.494Z"
+  "updateTime": "2026-05-06T21:35:08.503Z"
 }
\ No newline at end of file
diff --git a/handwritten/spanner/CHANGELOG.md b/handwritten/spanner/CHANGELOG.md
index f956a89f7db8..ab89ab372a05 100644
--- a/handwritten/spanner/CHANGELOG.md
+++ b/handwritten/spanner/CHANGELOG.md
@@ -5,6 +5,18 @@
 
 [1]: https://www.npmjs.com/package/nodejs-spanner?activeTab=versions
 
+## [8.7.1](https://github.com/googleapis/google-cloud-node/compare/spanner-v8.7.0...spanner-v8.7.1) (2026-05-06)
+
+
+### Bug Fixes
+
+* Bump all node submodules ([#8178](https://github.com/googleapis/google-cloud-node/issues/8178)) ([9fd76ef](https://github.com/googleapis/google-cloud-node/commit/9fd76eff87b1cf02db6205f141449b31e8ab7d8f))
+* Change the copyright year for files in the packages folder ([#8109](https://github.com/googleapis/google-cloud-node/issues/8109)) ([c1a03fe](https://github.com/googleapis/google-cloud-node/commit/c1a03fe604662091be283055c7d34052c64d6334))
+* **spanner:** Clear metrics tracers after operation completion ([#8172](https://github.com/googleapis/google-cloud-node/issues/8172)) ([4c33205](https://github.com/googleapis/google-cloud-node/commit/4c33205869fc81a0ebd60604c3f91fe90b87ecea))
+* **spanner:** Disable metrics tracer when built-in metrics are disabled ([#8170](https://github.com/googleapis/google-cloud-node/issues/8170)) ([0dd9a53](https://github.com/googleapis/google-cloud-node/commit/0dd9a53aa825d08c106928f88d72ff931f839b1c))
+* **spanner:** GetTransaction type with options, cb ([#8045](https://github.com/googleapis/google-cloud-node/issues/8045)) ([8e31dd7](https://github.com/googleapis/google-cloud-node/commit/8e31dd7b8afb0a2fb6e1d6809fee7d9cd21370c8))
+* **spanner:** Record fractional latency metrics ([#8168](https://github.com/googleapis/google-cloud-node/issues/8168)) ([9e91cc8](https://github.com/googleapis/google-cloud-node/commit/9e91cc8b68973b546f1fb94b1c39951c395f5a2b))
+
 ## [8.7.0](https://github.com/googleapis/google-cloud-node/compare/spanner-v8.6.0...spanner-v8.7.0) (2026-04-14)
 
 
diff --git a/handwritten/spanner/package.json b/handwritten/spanner/package.json
index fef5dac5b1fc..1ff8b6481ecb 100644
--- a/handwritten/spanner/package.json
+++ b/handwritten/spanner/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/spanner",
   "description": "Cloud Spanner Client Library for Node.js",
-  "version": "8.7.0",
+  "version": "8.7.1",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {
diff --git a/handwritten/spanner/protos/protos.js b/handwritten/spanner/protos/protos.js
index 837290eefd8a..1007227b2abe 100644
--- a/handwritten/spanner/protos/protos.js
+++ b/handwritten/spanner/protos/protos.js
@@ -69,7 +69,7 @@
                 function Duration(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -144,9 +144,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Duration.decode = function decode(reader, length, error) {
+                Duration.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.Duration();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -162,7 +166,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -193,9 +197,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Duration.verify = function verify(message) {
+                Duration.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.seconds != null && message.hasOwnProperty("seconds"))
                         if (!$util.isInteger(message.seconds) && !(message.seconds && $util.isInteger(message.seconds.low) && $util.isInteger(message.seconds.high)))
                             return "seconds: integer|Long expected";
@@ -213,9 +221,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.Duration} Duration
                  */
-                Duration.fromObject = function fromObject(object) {
+                Duration.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.Duration)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.Duration();
                     if (object.seconds != null)
                         if ($util.Long)
@@ -312,7 +324,7 @@
                     this.file = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -378,9 +390,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                FileDescriptorSet.decode = function decode(reader, length, error) {
+                FileDescriptorSet.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FileDescriptorSet();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -390,11 +406,11 @@
                         case 1: {
                                 if (!(message.file && message.file.length))
                                     message.file = [];
-                                message.file.push($root.google.protobuf.FileDescriptorProto.decode(reader, reader.uint32()));
+                                message.file.push($root.google.protobuf.FileDescriptorProto.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
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@@ -425,14 +441,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FileDescriptorSet.verify = function verify(message) {
+                FileDescriptorSet.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.file != null && message.hasOwnProperty("file")) {
                         if (!Array.isArray(message.file))
                             return "file: array expected";
                         for (var i = 0; i < message.file.length; ++i) {
-                            var error = $root.google.protobuf.FileDescriptorProto.verify(message.file[i]);
+                            var error = $root.google.protobuf.FileDescriptorProto.verify(message.file[i], long + 1);
                             if (error)
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                         }
@@ -448,9 +468,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.FileDescriptorSet} FileDescriptorSet
                  */
-                FileDescriptorSet.fromObject = function fromObject(object) {
+                FileDescriptorSet.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.FileDescriptorSet)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.FileDescriptorSet();
                     if (object.file) {
                         if (!Array.isArray(object.file))
@@ -459,7 +483,7 @@
                         for (var i = 0; i < object.file.length; ++i) {
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                                 throw TypeError(".google.protobuf.FileDescriptorSet.file: object expected");
-                            message.file[i] = $root.google.protobuf.FileDescriptorProto.fromObject(object.file[i]);
+                            message.file[i] = $root.google.protobuf.FileDescriptorProto.fromObject(object.file[i], long + 1);
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                     return message;
@@ -592,7 +616,7 @@
                     this.extension = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -795,9 +819,13 @@
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                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                FileDescriptorProto.decode = function decode(reader, length, error) {
+                FileDescriptorProto.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
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@@ -849,33 +877,33 @@
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-                                message.messageType.push($root.google.protobuf.DescriptorProto.decode(reader, reader.uint32()));
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                                 if (!(message.enumType && message.enumType.length))
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-                                message.enumType.push($root.google.protobuf.EnumDescriptorProto.decode(reader, reader.uint32()));
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                         case 6: {
                                 if (!(message.service && message.service.length))
                                     message.service = [];
-                                message.service.push($root.google.protobuf.ServiceDescriptorProto.decode(reader, reader.uint32()));
+                                message.service.push($root.google.protobuf.ServiceDescriptorProto.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
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                         case 7: {
                                 if (!(message.extension && message.extension.length))
                                     message.extension = [];
-                                message.extension.push($root.google.protobuf.FieldDescriptorProto.decode(reader, reader.uint32()));
+                                message.extension.push($root.google.protobuf.FieldDescriptorProto.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
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                         case 8: {
-                                message.options = $root.google.protobuf.FileOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.FileOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 9: {
-                                message.sourceCodeInfo = $root.google.protobuf.SourceCodeInfo.decode(reader, reader.uint32());
+                                message.sourceCodeInfo = $root.google.protobuf.SourceCodeInfo.decode(reader, reader.uint32(), undefined, long + 1);
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                         case 12: {
@@ -887,7 +915,7 @@
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                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
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@@ -918,9 +946,13 @@
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                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FileDescriptorProto.verify = function verify(message) {
+                FileDescriptorProto.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
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@@ -959,7 +991,7 @@
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-                            var error = $root.google.protobuf.DescriptorProto.verify(message.messageType[i]);
+                            var error = $root.google.protobuf.DescriptorProto.verify(message.messageType[i], long + 1);
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@@ -968,7 +1000,7 @@
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                         for (var i = 0; i < message.enumType.length; ++i) {
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+                            var error = $root.google.protobuf.EnumDescriptorProto.verify(message.enumType[i], long + 1);
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@@ -977,7 +1009,7 @@
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+                            var error = $root.google.protobuf.ServiceDescriptorProto.verify(message.service[i], long + 1);
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@@ -986,18 +1018,18 @@
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-                            var error = $root.google.protobuf.FieldDescriptorProto.verify(message.extension[i]);
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                  * @returns {google.protobuf.FileDescriptorProto} FileDescriptorProto
                  */
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                     if (object instanceof $root.google.protobuf.FileDescriptorProto)
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@@ -1333,7 +1369,7 @@
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                     if (properties)
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@@ -1506,9 +1542,13 @@
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-                DescriptorProto.decode = function decode(reader, length, error) {
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+                    if (long === undefined)
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+                    if (long > $Reader.recursionLimit)
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@@ -1522,47 +1562,47 @@
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-                                message.field.push($root.google.protobuf.FieldDescriptorProto.decode(reader, reader.uint32()));
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                         case 6: {
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-                                message.extension.push($root.google.protobuf.FieldDescriptorProto.decode(reader, reader.uint32()));
+                                message.extension.push($root.google.protobuf.FieldDescriptorProto.decode(reader, reader.uint32(), undefined, long + 1));
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-                                message.nestedType.push($root.google.protobuf.DescriptorProto.decode(reader, reader.uint32()));
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-                                message.enumType.push($root.google.protobuf.EnumDescriptorProto.decode(reader, reader.uint32()));
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-                                message.extensionRange.push($root.google.protobuf.DescriptorProto.ExtensionRange.decode(reader, reader.uint32()));
+                                message.extensionRange.push($root.google.protobuf.DescriptorProto.ExtensionRange.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 8: {
                                 if (!(message.oneofDecl && message.oneofDecl.length))
                                     message.oneofDecl = [];
-                                message.oneofDecl.push($root.google.protobuf.OneofDescriptorProto.decode(reader, reader.uint32()));
+                                message.oneofDecl.push($root.google.protobuf.OneofDescriptorProto.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 7: {
-                                message.options = $root.google.protobuf.MessageOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.MessageOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 9: {
                                 if (!(message.reservedRange && message.reservedRange.length))
                                     message.reservedRange = [];
-                                message.reservedRange.push($root.google.protobuf.DescriptorProto.ReservedRange.decode(reader, reader.uint32()));
+                                message.reservedRange.push($root.google.protobuf.DescriptorProto.ReservedRange.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 10: {
@@ -1576,7 +1616,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
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@@ -1607,9 +1647,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                DescriptorProto.verify = function verify(message) {
+                DescriptorProto.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
@@ -1617,7 +1661,7 @@
                         if (!Array.isArray(message.field))
                             return "field: array expected";
                         for (var i = 0; i < message.field.length; ++i) {
-                            var error = $root.google.protobuf.FieldDescriptorProto.verify(message.field[i]);
+                            var error = $root.google.protobuf.FieldDescriptorProto.verify(message.field[i], long + 1);
                             if (error)
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@@ -1626,7 +1670,7 @@
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                             return "extension: array expected";
                         for (var i = 0; i < message.extension.length; ++i) {
-                            var error = $root.google.protobuf.FieldDescriptorProto.verify(message.extension[i]);
+                            var error = $root.google.protobuf.FieldDescriptorProto.verify(message.extension[i], long + 1);
                             if (error)
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@@ -1635,7 +1679,7 @@
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                             return "nestedType: array expected";
                         for (var i = 0; i < message.nestedType.length; ++i) {
-                            var error = $root.google.protobuf.DescriptorProto.verify(message.nestedType[i]);
+                            var error = $root.google.protobuf.DescriptorProto.verify(message.nestedType[i], long + 1);
                             if (error)
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@@ -1644,7 +1688,7 @@
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                             return "enumType: array expected";
                         for (var i = 0; i < message.enumType.length; ++i) {
-                            var error = $root.google.protobuf.EnumDescriptorProto.verify(message.enumType[i]);
+                            var error = $root.google.protobuf.EnumDescriptorProto.verify(message.enumType[i], long + 1);
                             if (error)
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@@ -1653,7 +1697,7 @@
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                         for (var i = 0; i < message.extensionRange.length; ++i) {
-                            var error = $root.google.protobuf.DescriptorProto.ExtensionRange.verify(message.extensionRange[i]);
+                            var error = $root.google.protobuf.DescriptorProto.ExtensionRange.verify(message.extensionRange[i], long + 1);
                             if (error)
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                         for (var i = 0; i < message.oneofDecl.length; ++i) {
-                            var error = $root.google.protobuf.OneofDescriptorProto.verify(message.oneofDecl[i]);
+                            var error = $root.google.protobuf.OneofDescriptorProto.verify(message.oneofDecl[i], long + 1);
                             if (error)
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                         }
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                     if (message.options != null && message.hasOwnProperty("options")) {
-                        var error = $root.google.protobuf.MessageOptions.verify(message.options);
+                        var error = $root.google.protobuf.MessageOptions.verify(message.options, long + 1);
                         if (error)
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@@ -1676,7 +1720,7 @@
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                         for (var i = 0; i < message.reservedRange.length; ++i) {
-                            var error = $root.google.protobuf.DescriptorProto.ReservedRange.verify(message.reservedRange[i]);
+                            var error = $root.google.protobuf.DescriptorProto.ReservedRange.verify(message.reservedRange[i], long + 1);
                             if (error)
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@@ -1708,9 +1752,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.DescriptorProto} DescriptorProto
                  */
-                DescriptorProto.fromObject = function fromObject(object) {
+                DescriptorProto.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.DescriptorProto)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.DescriptorProto();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -1721,7 +1769,7 @@
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                                 throw TypeError(".google.protobuf.DescriptorProto.field: object expected");
-                            message.field[i] = $root.google.protobuf.FieldDescriptorProto.fromObject(object.field[i]);
+                            message.field[i] = $root.google.protobuf.FieldDescriptorProto.fromObject(object.field[i], long + 1);
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@@ -1731,7 +1779,7 @@
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                                 throw TypeError(".google.protobuf.DescriptorProto.extension: object expected");
-                            message.extension[i] = $root.google.protobuf.FieldDescriptorProto.fromObject(object.extension[i]);
+                            message.extension[i] = $root.google.protobuf.FieldDescriptorProto.fromObject(object.extension[i], long + 1);
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@@ -1741,7 +1789,7 @@
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                                 throw TypeError(".google.protobuf.DescriptorProto.nestedType: object expected");
-                            message.nestedType[i] = $root.google.protobuf.DescriptorProto.fromObject(object.nestedType[i]);
+                            message.nestedType[i] = $root.google.protobuf.DescriptorProto.fromObject(object.nestedType[i], long + 1);
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@@ -1751,7 +1799,7 @@
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                                 throw TypeError(".google.protobuf.DescriptorProto.enumType: object expected");
-                            message.enumType[i] = $root.google.protobuf.EnumDescriptorProto.fromObject(object.enumType[i]);
+                            message.enumType[i] = $root.google.protobuf.EnumDescriptorProto.fromObject(object.enumType[i], long + 1);
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@@ -1761,7 +1809,7 @@
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                                 throw TypeError(".google.protobuf.DescriptorProto.extensionRange: object expected");
-                            message.extensionRange[i] = $root.google.protobuf.DescriptorProto.ExtensionRange.fromObject(object.extensionRange[i]);
+                            message.extensionRange[i] = $root.google.protobuf.DescriptorProto.ExtensionRange.fromObject(object.extensionRange[i], long + 1);
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@@ -1771,13 +1819,13 @@
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                                 throw TypeError(".google.protobuf.DescriptorProto.oneofDecl: object expected");
-                            message.oneofDecl[i] = $root.google.protobuf.OneofDescriptorProto.fromObject(object.oneofDecl[i]);
+                            message.oneofDecl[i] = $root.google.protobuf.OneofDescriptorProto.fromObject(object.oneofDecl[i], long + 1);
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                     if (object.options != null) {
                         if (typeof object.options !== "object")
                             throw TypeError(".google.protobuf.DescriptorProto.options: object expected");
-                        message.options = $root.google.protobuf.MessageOptions.fromObject(object.options);
+                        message.options = $root.google.protobuf.MessageOptions.fromObject(object.options, long + 1);
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                     if (object.reservedRange) {
                         if (!Array.isArray(object.reservedRange))
@@ -1786,7 +1834,7 @@
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                                 throw TypeError(".google.protobuf.DescriptorProto.reservedRange: object expected");
-                            message.reservedRange[i] = $root.google.protobuf.DescriptorProto.ReservedRange.fromObject(object.reservedRange[i]);
+                            message.reservedRange[i] = $root.google.protobuf.DescriptorProto.ReservedRange.fromObject(object.reservedRange[i], long + 1);
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                     if (object.reservedName) {
@@ -1944,7 +1992,7 @@
                     function ExtensionRange(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -2029,9 +2077,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ExtensionRange.decode = function decode(reader, length, error) {
+                    ExtensionRange.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.DescriptorProto.ExtensionRange();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -2047,11 +2099,11 @@
                                     break;
                                 }
                             case 3: {
-                                    message.options = $root.google.protobuf.ExtensionRangeOptions.decode(reader, reader.uint32());
+                                    message.options = $root.google.protobuf.ExtensionRangeOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -2082,9 +2134,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ExtensionRange.verify = function verify(message) {
+                    ExtensionRange.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.start != null && message.hasOwnProperty("start"))
                             if (!$util.isInteger(message.start))
                                 return "start: integer expected";
@@ -2092,7 +2148,7 @@
                             if (!$util.isInteger(message.end))
                                 return "end: integer expected";
                         if (message.options != null && message.hasOwnProperty("options")) {
-                            var error = $root.google.protobuf.ExtensionRangeOptions.verify(message.options);
+                            var error = $root.google.protobuf.ExtensionRangeOptions.verify(message.options, long + 1);
                             if (error)
                                 return "options." + error;
                         }
@@ -2107,9 +2163,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.DescriptorProto.ExtensionRange} ExtensionRange
                      */
-                    ExtensionRange.fromObject = function fromObject(object) {
+                    ExtensionRange.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.DescriptorProto.ExtensionRange)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.DescriptorProto.ExtensionRange();
                         if (object.start != null)
                             message.start = object.start | 0;
@@ -2118,7 +2178,7 @@
                         if (object.options != null) {
                             if (typeof object.options !== "object")
                                 throw TypeError(".google.protobuf.DescriptorProto.ExtensionRange.options: object expected");
-                            message.options = $root.google.protobuf.ExtensionRangeOptions.fromObject(object.options);
+                            message.options = $root.google.protobuf.ExtensionRangeOptions.fromObject(object.options, long + 1);
                         }
                         return message;
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@@ -2200,7 +2260,7 @@
                     function ReservedRange(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -2275,9 +2335,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ReservedRange.decode = function decode(reader, length, error) {
+                    ReservedRange.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.DescriptorProto.ReservedRange();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -2293,7 +2357,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
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                         }
@@ -2324,9 +2388,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ReservedRange.verify = function verify(message) {
+                    ReservedRange.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.start != null && message.hasOwnProperty("start"))
                             if (!$util.isInteger(message.start))
                                 return "start: integer expected";
@@ -2344,9 +2412,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.DescriptorProto.ReservedRange} ReservedRange
                      */
-                    ReservedRange.fromObject = function fromObject(object) {
+                    ReservedRange.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.DescriptorProto.ReservedRange)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.DescriptorProto.ReservedRange();
                         if (object.start != null)
                             message.start = object.start | 0;
@@ -2436,7 +2508,7 @@
                     this.declaration = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -2533,9 +2605,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ExtensionRangeOptions.decode = function decode(reader, length, error) {
+                ExtensionRangeOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.ExtensionRangeOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -2545,17 +2621,17 @@
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 2: {
                                 if (!(message.declaration && message.declaration.length))
                                     message.declaration = [];
-                                message.declaration.push($root.google.protobuf.ExtensionRangeOptions.Declaration.decode(reader, reader.uint32()));
+                                message.declaration.push($root.google.protobuf.ExtensionRangeOptions.Declaration.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 50: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 3: {
@@ -2563,7 +2639,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
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@@ -2594,14 +2670,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ExtensionRangeOptions.verify = function verify(message) {
+                ExtensionRangeOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.uninterpretedOption != null && message.hasOwnProperty("uninterpretedOption")) {
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
@@ -2610,13 +2690,13 @@
                         if (!Array.isArray(message.declaration))
                             return "declaration: array expected";
                         for (var i = 0; i < message.declaration.length; ++i) {
-                            var error = $root.google.protobuf.ExtensionRangeOptions.Declaration.verify(message.declaration[i]);
+                            var error = $root.google.protobuf.ExtensionRangeOptions.Declaration.verify(message.declaration[i], long + 1);
                             if (error)
                                 return "declaration." + error;
                         }
                     }
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -2639,9 +2719,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.ExtensionRangeOptions} ExtensionRangeOptions
                  */
-                ExtensionRangeOptions.fromObject = function fromObject(object) {
+                ExtensionRangeOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.ExtensionRangeOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.ExtensionRangeOptions();
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -2650,7 +2734,7 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.ExtensionRangeOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     if (object.declaration) {
@@ -2660,13 +2744,13 @@
                         for (var i = 0; i < object.declaration.length; ++i) {
                             if (typeof object.declaration[i] !== "object")
                                 throw TypeError(".google.protobuf.ExtensionRangeOptions.declaration: object expected");
-                            message.declaration[i] = $root.google.protobuf.ExtensionRangeOptions.Declaration.fromObject(object.declaration[i]);
+                            message.declaration[i] = $root.google.protobuf.ExtensionRangeOptions.Declaration.fromObject(object.declaration[i], long + 1);
                         }
                     }
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.ExtensionRangeOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     switch (object.verification) {
                     case "DECLARATION":
@@ -2775,7 +2859,7 @@
                     function Declaration(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -2880,9 +2964,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Declaration.decode = function decode(reader, length, error) {
+                    Declaration.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.ExtensionRangeOptions.Declaration();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -2910,7 +2998,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -2941,9 +3029,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Declaration.verify = function verify(message) {
+                    Declaration.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.number != null && message.hasOwnProperty("number"))
                             if (!$util.isInteger(message.number))
                                 return "number: integer expected";
@@ -2970,9 +3062,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.ExtensionRangeOptions.Declaration} Declaration
                      */
-                    Declaration.fromObject = function fromObject(object) {
+                    Declaration.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.ExtensionRangeOptions.Declaration)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.ExtensionRangeOptions.Declaration();
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                 function FieldDescriptorProto(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
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@@ -3261,9 +3357,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
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+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
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@@ -3307,7 +3407,7 @@
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                         case 8: {
-                                message.options = $root.google.protobuf.FieldOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.FieldOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
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                         case 17: {
@@ -3315,7 +3415,7 @@
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                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
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                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FieldDescriptorProto.verify = function verify(message) {
+                FieldDescriptorProto.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
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@@ -3404,7 +3508,7 @@
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                             return "jsonName: string expected";
                     if (message.options != null && message.hasOwnProperty("options")) {
-                        var error = $root.google.protobuf.FieldOptions.verify(message.options);
+                        var error = $root.google.protobuf.FieldOptions.verify(message.options, long + 1);
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@@ -3422,9 +3526,13 @@
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                  * @returns {google.protobuf.FieldDescriptorProto} FieldDescriptorProto
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-                FieldDescriptorProto.fromObject = function fromObject(object) {
+                FieldDescriptorProto.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.FieldDescriptorProto)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
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-                        message.options = $root.google.protobuf.FieldOptions.fromObject(object.options);
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                 function OneofDescriptorProto(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
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@@ -3788,9 +3896,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                OneofDescriptorProto.decode = function decode(reader, length, error) {
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+                    if (long === undefined)
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+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.OneofDescriptorProto();
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@@ -3802,11 +3914,11 @@
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                         case 2: {
-                                message.options = $root.google.protobuf.OneofOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.OneofOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
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                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
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@@ -3837,14 +3949,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                OneofDescriptorProto.verify = function verify(message) {
+                OneofDescriptorProto.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
                     if (message.options != null && message.hasOwnProperty("options")) {
-                        var error = $root.google.protobuf.OneofOptions.verify(message.options);
+                        var error = $root.google.protobuf.OneofOptions.verify(message.options, long + 1);
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@@ -3859,16 +3975,20 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.OneofDescriptorProto} OneofDescriptorProto
                  */
-                OneofDescriptorProto.fromObject = function fromObject(object) {
+                OneofDescriptorProto.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.OneofDescriptorProto)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.OneofDescriptorProto();
                     if (object.name != null)
                         message.name = String(object.name);
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                         if (typeof object.options !== "object")
                             throw TypeError(".google.protobuf.OneofDescriptorProto.options: object expected");
-                        message.options = $root.google.protobuf.OneofOptions.fromObject(object.options);
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@@ -3954,7 +4074,7 @@
                     this.reservedName = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -4072,9 +4192,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                EnumDescriptorProto.decode = function decode(reader, length, error) {
+                EnumDescriptorProto.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
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+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.EnumDescriptorProto();
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@@ -4088,17 +4212,17 @@
                         case 2: {
                                 if (!(message.value && message.value.length))
                                     message.value = [];
-                                message.value.push($root.google.protobuf.EnumValueDescriptorProto.decode(reader, reader.uint32()));
+                                message.value.push($root.google.protobuf.EnumValueDescriptorProto.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 3: {
-                                message.options = $root.google.protobuf.EnumOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.EnumOptions.decode(reader, reader.uint32(), undefined, long + 1);
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                                     message.reservedRange = [];
-                                message.reservedRange.push($root.google.protobuf.EnumDescriptorProto.EnumReservedRange.decode(reader, reader.uint32()));
+                                message.reservedRange.push($root.google.protobuf.EnumDescriptorProto.EnumReservedRange.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
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                         case 5: {
@@ -4112,7 +4236,7 @@
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-                            reader.skipType(tag & 7);
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                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                EnumDescriptorProto.verify = function verify(message) {
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+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
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@@ -4153,13 +4281,13 @@
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                         for (var i = 0; i < message.value.length; ++i) {
-                            var error = $root.google.protobuf.EnumValueDescriptorProto.verify(message.value[i]);
+                            var error = $root.google.protobuf.EnumValueDescriptorProto.verify(message.value[i], long + 1);
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                     if (message.options != null && message.hasOwnProperty("options")) {
-                        var error = $root.google.protobuf.EnumOptions.verify(message.options);
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@@ -4167,7 +4295,7 @@
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                         for (var i = 0; i < message.reservedRange.length; ++i) {
-                            var error = $root.google.protobuf.EnumDescriptorProto.EnumReservedRange.verify(message.reservedRange[i]);
+                            var error = $root.google.protobuf.EnumDescriptorProto.EnumReservedRange.verify(message.reservedRange[i], long + 1);
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@@ -4199,9 +4327,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.EnumDescriptorProto} EnumDescriptorProto
                  */
-                EnumDescriptorProto.fromObject = function fromObject(object) {
+                EnumDescriptorProto.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.EnumDescriptorProto)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.EnumDescriptorProto();
                     if (object.name != null)
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@@ -4212,13 +4344,13 @@
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                                 throw TypeError(".google.protobuf.EnumDescriptorProto.value: object expected");
-                            message.value[i] = $root.google.protobuf.EnumValueDescriptorProto.fromObject(object.value[i]);
+                            message.value[i] = $root.google.protobuf.EnumValueDescriptorProto.fromObject(object.value[i], long + 1);
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                         if (typeof object.options !== "object")
                             throw TypeError(".google.protobuf.EnumDescriptorProto.options: object expected");
-                        message.options = $root.google.protobuf.EnumOptions.fromObject(object.options);
+                        message.options = $root.google.protobuf.EnumOptions.fromObject(object.options, long + 1);
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                         if (!Array.isArray(object.reservedRange))
@@ -4227,7 +4359,7 @@
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                                 throw TypeError(".google.protobuf.EnumDescriptorProto.reservedRange: object expected");
-                            message.reservedRange[i] = $root.google.protobuf.EnumDescriptorProto.EnumReservedRange.fromObject(object.reservedRange[i]);
+                            message.reservedRange[i] = $root.google.protobuf.EnumDescriptorProto.EnumReservedRange.fromObject(object.reservedRange[i], long + 1);
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@@ -4354,7 +4486,7 @@
                     function EnumReservedRange(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -4429,9 +4561,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    EnumReservedRange.decode = function decode(reader, length, error) {
+                    EnumReservedRange.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.EnumDescriptorProto.EnumReservedRange();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -4447,7 +4583,7 @@
                                     break;
                                 }
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-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
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@@ -4478,9 +4614,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    EnumReservedRange.verify = function verify(message) {
+                    EnumReservedRange.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.start != null && message.hasOwnProperty("start"))
                             if (!$util.isInteger(message.start))
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@@ -4498,9 +4638,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.EnumDescriptorProto.EnumReservedRange} EnumReservedRange
                      */
-                    EnumReservedRange.fromObject = function fromObject(object) {
+                    EnumReservedRange.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.EnumDescriptorProto.EnumReservedRange)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.EnumDescriptorProto.EnumReservedRange();
                         if (object.start != null)
                             message.start = object.start | 0;
@@ -4587,7 +4731,7 @@
                 function EnumValueDescriptorProto(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -4672,9 +4816,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                EnumValueDescriptorProto.decode = function decode(reader, length, error) {
+                EnumValueDescriptorProto.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.EnumValueDescriptorProto();
                     while (reader.pos < end) {
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@@ -4690,11 +4838,11 @@
                                 break;
                             }
                         case 3: {
-                                message.options = $root.google.protobuf.EnumValueOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.EnumValueOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
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@@ -4725,9 +4873,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                EnumValueDescriptorProto.verify = function verify(message) {
+                EnumValueDescriptorProto.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
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@@ -4735,7 +4887,7 @@
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                             return "number: integer expected";
                     if (message.options != null && message.hasOwnProperty("options")) {
-                        var error = $root.google.protobuf.EnumValueOptions.verify(message.options);
+                        var error = $root.google.protobuf.EnumValueOptions.verify(message.options, long + 1);
                         if (error)
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@@ -4750,9 +4902,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.EnumValueDescriptorProto} EnumValueDescriptorProto
                  */
-                EnumValueDescriptorProto.fromObject = function fromObject(object) {
+                EnumValueDescriptorProto.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.EnumValueDescriptorProto)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.EnumValueDescriptorProto();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -4761,7 +4917,7 @@
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                         if (typeof object.options !== "object")
                             throw TypeError(".google.protobuf.EnumValueDescriptorProto.options: object expected");
-                        message.options = $root.google.protobuf.EnumValueOptions.fromObject(object.options);
+                        message.options = $root.google.protobuf.EnumValueOptions.fromObject(object.options, long + 1);
                     }
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@@ -4845,7 +5001,7 @@
                     this.method = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
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@@ -4931,9 +5087,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ServiceDescriptorProto.decode = function decode(reader, length, error) {
+                ServiceDescriptorProto.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.ServiceDescriptorProto();
                     while (reader.pos < end) {
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@@ -4947,15 +5107,15 @@
                         case 2: {
                                 if (!(message.method && message.method.length))
                                     message.method = [];
-                                message.method.push($root.google.protobuf.MethodDescriptorProto.decode(reader, reader.uint32()));
+                                message.method.push($root.google.protobuf.MethodDescriptorProto.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 3: {
-                                message.options = $root.google.protobuf.ServiceOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.ServiceOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
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@@ -4986,9 +5146,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ServiceDescriptorProto.verify = function verify(message) {
+                ServiceDescriptorProto.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
@@ -4996,13 +5160,13 @@
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                             return "method: array expected";
                         for (var i = 0; i < message.method.length; ++i) {
-                            var error = $root.google.protobuf.MethodDescriptorProto.verify(message.method[i]);
+                            var error = $root.google.protobuf.MethodDescriptorProto.verify(message.method[i], long + 1);
                             if (error)
                                 return "method." + error;
                         }
                     }
                     if (message.options != null && message.hasOwnProperty("options")) {
-                        var error = $root.google.protobuf.ServiceOptions.verify(message.options);
+                        var error = $root.google.protobuf.ServiceOptions.verify(message.options, long + 1);
                         if (error)
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@@ -5017,9 +5181,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.ServiceDescriptorProto} ServiceDescriptorProto
                  */
-                ServiceDescriptorProto.fromObject = function fromObject(object) {
+                ServiceDescriptorProto.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.ServiceDescriptorProto)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.ServiceDescriptorProto();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -5030,13 +5198,13 @@
                         for (var i = 0; i < object.method.length; ++i) {
                             if (typeof object.method[i] !== "object")
                                 throw TypeError(".google.protobuf.ServiceDescriptorProto.method: object expected");
-                            message.method[i] = $root.google.protobuf.MethodDescriptorProto.fromObject(object.method[i]);
+                            message.method[i] = $root.google.protobuf.MethodDescriptorProto.fromObject(object.method[i], long + 1);
                         }
                     }
                     if (object.options != null) {
                         if (typeof object.options !== "object")
                             throw TypeError(".google.protobuf.ServiceDescriptorProto.options: object expected");
-                        message.options = $root.google.protobuf.ServiceOptions.fromObject(object.options);
+                        message.options = $root.google.protobuf.ServiceOptions.fromObject(object.options, long + 1);
                     }
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@@ -5126,7 +5294,7 @@
                 function MethodDescriptorProto(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -5241,9 +5409,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                MethodDescriptorProto.decode = function decode(reader, length, error) {
+                MethodDescriptorProto.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.MethodDescriptorProto();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -5263,7 +5435,7 @@
                                 break;
                             }
                         case 4: {
-                                message.options = $root.google.protobuf.MethodOptions.decode(reader, reader.uint32());
+                                message.options = $root.google.protobuf.MethodOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 5: {
@@ -5275,7 +5447,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -5306,9 +5478,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                MethodDescriptorProto.verify = function verify(message) {
+                MethodDescriptorProto.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
@@ -5319,7 +5495,7 @@
                         if (!$util.isString(message.outputType))
                             return "outputType: string expected";
                     if (message.options != null && message.hasOwnProperty("options")) {
-                        var error = $root.google.protobuf.MethodOptions.verify(message.options);
+                        var error = $root.google.protobuf.MethodOptions.verify(message.options, long + 1);
                         if (error)
                             return "options." + error;
                     }
@@ -5340,9 +5516,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.MethodDescriptorProto} MethodDescriptorProto
                  */
-                MethodDescriptorProto.fromObject = function fromObject(object) {
+                MethodDescriptorProto.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.MethodDescriptorProto)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.MethodDescriptorProto();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -5353,7 +5533,7 @@
                     if (object.options != null) {
                         if (typeof object.options !== "object")
                             throw TypeError(".google.protobuf.MethodDescriptorProto.options: object expected");
-                        message.options = $root.google.protobuf.MethodOptions.fromObject(object.options);
+                        message.options = $root.google.protobuf.MethodOptions.fromObject(object.options, long + 1);
                     }
                     if (object.clientStreaming != null)
                         message.clientStreaming = Boolean(object.clientStreaming);
@@ -5470,7 +5650,7 @@
                     this[".google.api.resourceDefinition"] = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -5747,9 +5927,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                FileOptions.decode = function decode(reader, length, error) {
+                FileOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FileOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -5833,23 +6017,23 @@
                                 break;
                             }
                         case 50: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 1053: {
                                 if (!(message[".google.api.resourceDefinition"] && message[".google.api.resourceDefinition"].length))
                                     message[".google.api.resourceDefinition"] = [];
-                                message[".google.api.resourceDefinition"].push($root.google.api.ResourceDescriptor.decode(reader, reader.uint32()));
+                                message[".google.api.resourceDefinition"].push($root.google.api.ResourceDescriptor.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -5880,9 +6064,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FileOptions.verify = function verify(message) {
+                FileOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.javaPackage != null && message.hasOwnProperty("javaPackage"))
                         if (!$util.isString(message.javaPackage))
                             return "javaPackage: string expected";
@@ -5947,7 +6135,7 @@
                         if (!$util.isString(message.rubyPackage))
                             return "rubyPackage: string expected";
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -5955,7 +6143,7 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
@@ -5964,7 +6152,7 @@
                         if (!Array.isArray(message[".google.api.resourceDefinition"]))
                             return ".google.api.resourceDefinition: array expected";
                         for (var i = 0; i < message[".google.api.resourceDefinition"].length; ++i) {
-                            var error = $root.google.api.ResourceDescriptor.verify(message[".google.api.resourceDefinition"][i]);
+                            var error = $root.google.api.ResourceDescriptor.verify(message[".google.api.resourceDefinition"][i], long + 1);
                             if (error)
                                 return ".google.api.resourceDefinition." + error;
                         }
@@ -5980,9 +6168,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.FileOptions} FileOptions
                  */
-                FileOptions.fromObject = function fromObject(object) {
+                FileOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.FileOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.FileOptions();
                     if (object.javaPackage != null)
                         message.javaPackage = String(object.javaPackage);
@@ -6043,7 +6235,7 @@
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.FileOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -6052,7 +6244,7 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.FileOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     if (object[".google.api.resourceDefinition"]) {
@@ -6062,7 +6254,7 @@
                         for (var i = 0; i < object[".google.api.resourceDefinition"].length; ++i) {
                             if (typeof object[".google.api.resourceDefinition"][i] !== "object")
                                 throw TypeError(".google.protobuf.FileOptions..google.api.resourceDefinition: object expected");
-                            message[".google.api.resourceDefinition"][i] = $root.google.api.ResourceDescriptor.fromObject(object[".google.api.resourceDefinition"][i]);
+                            message[".google.api.resourceDefinition"][i] = $root.google.api.ResourceDescriptor.fromObject(object[".google.api.resourceDefinition"][i], long + 1);
                         }
                     }
                     return message;
@@ -6233,7 +6425,7 @@
                     this.uninterpretedOption = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -6369,9 +6561,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                MessageOptions.decode = function decode(reader, length, error) {
+                MessageOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.MessageOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -6399,21 +6595,21 @@
                                 break;
                             }
                         case 12: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 1053: {
-                                message[".google.api.resource"] = $root.google.api.ResourceDescriptor.decode(reader, reader.uint32());
+                                message[".google.api.resource"] = $root.google.api.ResourceDescriptor.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -6444,9 +6640,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                MessageOptions.verify = function verify(message) {
+                MessageOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.messageSetWireFormat != null && message.hasOwnProperty("messageSetWireFormat"))
                         if (typeof message.messageSetWireFormat !== "boolean")
                             return "messageSetWireFormat: boolean expected";
@@ -6463,7 +6663,7 @@
                         if (typeof message.deprecatedLegacyJsonFieldConflicts !== "boolean")
                             return "deprecatedLegacyJsonFieldConflicts: boolean expected";
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -6471,13 +6671,13 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
                     }
                     if (message[".google.api.resource"] != null && message.hasOwnProperty(".google.api.resource")) {
-                        var error = $root.google.api.ResourceDescriptor.verify(message[".google.api.resource"]);
+                        var error = $root.google.api.ResourceDescriptor.verify(message[".google.api.resource"], long + 1);
                         if (error)
                             return ".google.api.resource." + error;
                     }
@@ -6492,9 +6692,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.MessageOptions} MessageOptions
                  */
-                MessageOptions.fromObject = function fromObject(object) {
+                MessageOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.MessageOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.MessageOptions();
                     if (object.messageSetWireFormat != null)
                         message.messageSetWireFormat = Boolean(object.messageSetWireFormat);
@@ -6509,7 +6713,7 @@
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.MessageOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -6518,13 +6722,13 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.MessageOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     if (object[".google.api.resource"] != null) {
                         if (typeof object[".google.api.resource"] !== "object")
                             throw TypeError(".google.protobuf.MessageOptions..google.api.resource: object expected");
-                        message[".google.api.resource"] = $root.google.api.ResourceDescriptor.fromObject(object[".google.api.resource"]);
+                        message[".google.api.resource"] = $root.google.api.ResourceDescriptor.fromObject(object[".google.api.resource"], long + 1);
                     }
                     return message;
                 };
@@ -6643,7 +6847,7 @@
                     this[".google.api.fieldBehavior"] = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -6862,9 +7066,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                FieldOptions.decode = function decode(reader, length, error) {
+                FieldOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FieldOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -6921,21 +7129,21 @@
                         case 20: {
                                 if (!(message.editionDefaults && message.editionDefaults.length))
                                     message.editionDefaults = [];
-                                message.editionDefaults.push($root.google.protobuf.FieldOptions.EditionDefault.decode(reader, reader.uint32()));
+                                message.editionDefaults.push($root.google.protobuf.FieldOptions.EditionDefault.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 21: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 22: {
-                                message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.decode(reader, reader.uint32());
+                                message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 1052: {
@@ -6950,11 +7158,11 @@
                                 break;
                             }
                         case 1055: {
-                                message[".google.api.resourceReference"] = $root.google.api.ResourceReference.decode(reader, reader.uint32());
+                                message[".google.api.resourceReference"] = $root.google.api.ResourceReference.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -6985,9 +7193,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FieldOptions.verify = function verify(message) {
+                FieldOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.ctype != null && message.hasOwnProperty("ctype"))
                         switch (message.ctype) {
                         default:
@@ -7057,18 +7269,18 @@
                         if (!Array.isArray(message.editionDefaults))
                             return "editionDefaults: array expected";
                         for (var i = 0; i < message.editionDefaults.length; ++i) {
-                            var error = $root.google.protobuf.FieldOptions.EditionDefault.verify(message.editionDefaults[i]);
+                            var error = $root.google.protobuf.FieldOptions.EditionDefault.verify(message.editionDefaults[i], long + 1);
                             if (error)
                                 return "editionDefaults." + error;
                         }
                     }
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
                     if (message.featureSupport != null && message.hasOwnProperty("featureSupport")) {
-                        var error = $root.google.protobuf.FieldOptions.FeatureSupport.verify(message.featureSupport);
+                        var error = $root.google.protobuf.FieldOptions.FeatureSupport.verify(message.featureSupport, long + 1);
                         if (error)
                             return "featureSupport." + error;
                     }
@@ -7076,7 +7288,7 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
@@ -7101,7 +7313,7 @@
                             }
                     }
                     if (message[".google.api.resourceReference"] != null && message.hasOwnProperty(".google.api.resourceReference")) {
-                        var error = $root.google.api.ResourceReference.verify(message[".google.api.resourceReference"]);
+                        var error = $root.google.api.ResourceReference.verify(message[".google.api.resourceReference"], long + 1);
                         if (error)
                             return ".google.api.resourceReference." + error;
                     }
@@ -7116,9 +7328,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.FieldOptions} FieldOptions
                  */
-                FieldOptions.fromObject = function fromObject(object) {
+                FieldOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.FieldOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.FieldOptions();
                     switch (object.ctype) {
                     default:
@@ -7252,18 +7468,18 @@
                         for (var i = 0; i < object.editionDefaults.length; ++i) {
                             if (typeof object.editionDefaults[i] !== "object")
                                 throw TypeError(".google.protobuf.FieldOptions.editionDefaults: object expected");
-                            message.editionDefaults[i] = $root.google.protobuf.FieldOptions.EditionDefault.fromObject(object.editionDefaults[i]);
+                            message.editionDefaults[i] = $root.google.protobuf.FieldOptions.EditionDefault.fromObject(object.editionDefaults[i], long + 1);
                         }
                     }
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.FieldOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.featureSupport != null) {
                         if (typeof object.featureSupport !== "object")
                             throw TypeError(".google.protobuf.FieldOptions.featureSupport: object expected");
-                        message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.fromObject(object.featureSupport);
+                        message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.fromObject(object.featureSupport, long + 1);
                     }
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -7272,7 +7488,7 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.FieldOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     if (object[".google.api.fieldBehavior"]) {
@@ -7327,7 +7543,7 @@
                     if (object[".google.api.resourceReference"] != null) {
                         if (typeof object[".google.api.resourceReference"] !== "object")
                             throw TypeError(".google.protobuf.FieldOptions..google.api.resourceReference: object expected");
-                        message[".google.api.resourceReference"] = $root.google.api.ResourceReference.fromObject(object[".google.api.resourceReference"]);
+                        message[".google.api.resourceReference"] = $root.google.api.ResourceReference.fromObject(object[".google.api.resourceReference"], long + 1);
                     }
                     return message;
                 };
@@ -7537,7 +7753,7 @@
                     function EditionDefault(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -7612,9 +7828,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    EditionDefault.decode = function decode(reader, length, error) {
+                    EditionDefault.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FieldOptions.EditionDefault();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -7630,7 +7850,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -7661,9 +7881,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    EditionDefault.verify = function verify(message) {
+                    EditionDefault.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.edition != null && message.hasOwnProperty("edition"))
                             switch (message.edition) {
                             default:
@@ -7696,9 +7920,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.FieldOptions.EditionDefault} EditionDefault
                      */
-                    EditionDefault.fromObject = function fromObject(object) {
+                    EditionDefault.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.FieldOptions.EditionDefault)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.FieldOptions.EditionDefault();
                         switch (object.edition) {
                         default:
@@ -7837,7 +8065,7 @@
                     function FeatureSupport(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -7932,9 +8160,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    FeatureSupport.decode = function decode(reader, length, error) {
+                    FeatureSupport.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FieldOptions.FeatureSupport();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -7958,7 +8190,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -7989,9 +8221,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    FeatureSupport.verify = function verify(message) {
+                    FeatureSupport.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.editionIntroduced != null && message.hasOwnProperty("editionIntroduced"))
                             switch (message.editionIntroduced) {
                             default:
@@ -8060,9 +8296,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.FieldOptions.FeatureSupport} FeatureSupport
                      */
-                    FeatureSupport.fromObject = function fromObject(object) {
+                    FeatureSupport.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.FieldOptions.FeatureSupport)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.FieldOptions.FeatureSupport();
                         switch (object.editionIntroduced) {
                         default:
@@ -8321,7 +8561,7 @@
                     this.uninterpretedOption = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -8397,9 +8637,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                OneofOptions.decode = function decode(reader, length, error) {
+                OneofOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.OneofOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -8407,17 +8651,17 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -8448,11 +8692,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                OneofOptions.verify = function verify(message) {
+                OneofOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -8460,7 +8708,7 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
@@ -8476,14 +8724,18 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.OneofOptions} OneofOptions
                  */
-                OneofOptions.fromObject = function fromObject(object) {
+                OneofOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.OneofOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.OneofOptions();
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.OneofOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -8492,7 +8744,7 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.OneofOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     return message;
@@ -8579,7 +8831,7 @@
                     this.uninterpretedOption = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -8685,9 +8937,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                EnumOptions.decode = function decode(reader, length, error) {
+                EnumOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.EnumOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -8707,17 +8963,17 @@
                                 break;
                             }
                         case 7: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -8748,9 +9004,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                EnumOptions.verify = function verify(message) {
+                EnumOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.allowAlias != null && message.hasOwnProperty("allowAlias"))
                         if (typeof message.allowAlias !== "boolean")
                             return "allowAlias: boolean expected";
@@ -8761,7 +9021,7 @@
                         if (typeof message.deprecatedLegacyJsonFieldConflicts !== "boolean")
                             return "deprecatedLegacyJsonFieldConflicts: boolean expected";
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -8769,7 +9029,7 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
@@ -8785,9 +9045,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.EnumOptions} EnumOptions
                  */
-                EnumOptions.fromObject = function fromObject(object) {
+                EnumOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.EnumOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.EnumOptions();
                     if (object.allowAlias != null)
                         message.allowAlias = Boolean(object.allowAlias);
@@ -8798,7 +9062,7 @@
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.EnumOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -8807,7 +9071,7 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.EnumOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     return message;
@@ -8904,7 +9168,7 @@
                     this.uninterpretedOption = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -9010,9 +9274,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                EnumValueOptions.decode = function decode(reader, length, error) {
+                EnumValueOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.EnumValueOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -9024,7 +9292,7 @@
                                 break;
                             }
                         case 2: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 3: {
@@ -9032,17 +9300,17 @@
                                 break;
                             }
                         case 4: {
-                                message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.decode(reader, reader.uint32());
+                                message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -9073,14 +9341,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                EnumValueOptions.verify = function verify(message) {
+                EnumValueOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.deprecated != null && message.hasOwnProperty("deprecated"))
                         if (typeof message.deprecated !== "boolean")
                             return "deprecated: boolean expected";
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -9088,7 +9360,7 @@
                         if (typeof message.debugRedact !== "boolean")
                             return "debugRedact: boolean expected";
                     if (message.featureSupport != null && message.hasOwnProperty("featureSupport")) {
-                        var error = $root.google.protobuf.FieldOptions.FeatureSupport.verify(message.featureSupport);
+                        var error = $root.google.protobuf.FieldOptions.FeatureSupport.verify(message.featureSupport, long + 1);
                         if (error)
                             return "featureSupport." + error;
                     }
@@ -9096,7 +9368,7 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
@@ -9112,23 +9384,27 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.EnumValueOptions} EnumValueOptions
                  */
-                EnumValueOptions.fromObject = function fromObject(object) {
+                EnumValueOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.EnumValueOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.EnumValueOptions();
                     if (object.deprecated != null)
                         message.deprecated = Boolean(object.deprecated);
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.EnumValueOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.debugRedact != null)
                         message.debugRedact = Boolean(object.debugRedact);
                     if (object.featureSupport != null) {
                         if (typeof object.featureSupport !== "object")
                             throw TypeError(".google.protobuf.EnumValueOptions.featureSupport: object expected");
-                        message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.fromObject(object.featureSupport);
+                        message.featureSupport = $root.google.protobuf.FieldOptions.FeatureSupport.fromObject(object.featureSupport, long + 1);
                     }
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -9137,7 +9413,7 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.EnumValueOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     return message;
@@ -9235,7 +9511,7 @@
                     this.uninterpretedOption = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -9351,9 +9627,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ServiceOptions.decode = function decode(reader, length, error) {
+                ServiceOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.ServiceOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -9361,7 +9641,7 @@
                             break;
                         switch (tag >>> 3) {
                         case 34: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 33: {
@@ -9371,7 +9651,7 @@
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 1049: {
@@ -9387,7 +9667,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -9418,11 +9698,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ServiceOptions.verify = function verify(message) {
+                ServiceOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -9433,7 +9717,7 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
@@ -9458,14 +9742,18 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.ServiceOptions} ServiceOptions
                  */
-                ServiceOptions.fromObject = function fromObject(object) {
+                ServiceOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.ServiceOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.ServiceOptions();
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.ServiceOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.deprecated != null)
                         message.deprecated = Boolean(object.deprecated);
@@ -9476,7 +9764,7 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.ServiceOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     if (object[".google.api.defaultHost"] != null)
@@ -9585,7 +9873,7 @@
                     this[".google.api.methodSignature"] = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -9712,9 +10000,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                MethodOptions.decode = function decode(reader, length, error) {
+                MethodOptions.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.MethodOptions();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -9730,17 +10022,17 @@
                                 break;
                             }
                         case 35: {
-                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                message.features = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 999: {
                                 if (!(message.uninterpretedOption && message.uninterpretedOption.length))
                                     message.uninterpretedOption = [];
-                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32()));
+                                message.uninterpretedOption.push($root.google.protobuf.UninterpretedOption.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 72295728: {
-                                message[".google.api.http"] = $root.google.api.HttpRule.decode(reader, reader.uint32());
+                                message[".google.api.http"] = $root.google.api.HttpRule.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 1051: {
@@ -9750,11 +10042,11 @@
                                 break;
                             }
                         case 1049: {
-                                message[".google.longrunning.operationInfo"] = $root.google.longrunning.OperationInfo.decode(reader, reader.uint32());
+                                message[".google.longrunning.operationInfo"] = $root.google.longrunning.OperationInfo.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -9785,9 +10077,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                MethodOptions.verify = function verify(message) {
+                MethodOptions.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.deprecated != null && message.hasOwnProperty("deprecated"))
                         if (typeof message.deprecated !== "boolean")
                             return "deprecated: boolean expected";
@@ -9801,7 +10097,7 @@
                             break;
                         }
                     if (message.features != null && message.hasOwnProperty("features")) {
-                        var error = $root.google.protobuf.FeatureSet.verify(message.features);
+                        var error = $root.google.protobuf.FeatureSet.verify(message.features, long + 1);
                         if (error)
                             return "features." + error;
                     }
@@ -9809,13 +10105,13 @@
                         if (!Array.isArray(message.uninterpretedOption))
                             return "uninterpretedOption: array expected";
                         for (var i = 0; i < message.uninterpretedOption.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.verify(message.uninterpretedOption[i], long + 1);
                             if (error)
                                 return "uninterpretedOption." + error;
                         }
                     }
                     if (message[".google.api.http"] != null && message.hasOwnProperty(".google.api.http")) {
-                        var error = $root.google.api.HttpRule.verify(message[".google.api.http"]);
+                        var error = $root.google.api.HttpRule.verify(message[".google.api.http"], long + 1);
                         if (error)
                             return ".google.api.http." + error;
                     }
@@ -9827,7 +10123,7 @@
                                 return ".google.api.methodSignature: string[] expected";
                     }
                     if (message[".google.longrunning.operationInfo"] != null && message.hasOwnProperty(".google.longrunning.operationInfo")) {
-                        var error = $root.google.longrunning.OperationInfo.verify(message[".google.longrunning.operationInfo"]);
+                        var error = $root.google.longrunning.OperationInfo.verify(message[".google.longrunning.operationInfo"], long + 1);
                         if (error)
                             return ".google.longrunning.operationInfo." + error;
                     }
@@ -9842,9 +10138,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.MethodOptions} MethodOptions
                  */
-                MethodOptions.fromObject = function fromObject(object) {
+                MethodOptions.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.MethodOptions)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.MethodOptions();
                     if (object.deprecated != null)
                         message.deprecated = Boolean(object.deprecated);
@@ -9871,7 +10171,7 @@
                     if (object.features != null) {
                         if (typeof object.features !== "object")
                             throw TypeError(".google.protobuf.MethodOptions.features: object expected");
-                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features);
+                        message.features = $root.google.protobuf.FeatureSet.fromObject(object.features, long + 1);
                     }
                     if (object.uninterpretedOption) {
                         if (!Array.isArray(object.uninterpretedOption))
@@ -9880,13 +10180,13 @@
                         for (var i = 0; i < object.uninterpretedOption.length; ++i) {
                             if (typeof object.uninterpretedOption[i] !== "object")
                                 throw TypeError(".google.protobuf.MethodOptions.uninterpretedOption: object expected");
-                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i]);
+                            message.uninterpretedOption[i] = $root.google.protobuf.UninterpretedOption.fromObject(object.uninterpretedOption[i], long + 1);
                         }
                     }
                     if (object[".google.api.http"] != null) {
                         if (typeof object[".google.api.http"] !== "object")
                             throw TypeError(".google.protobuf.MethodOptions..google.api.http: object expected");
-                        message[".google.api.http"] = $root.google.api.HttpRule.fromObject(object[".google.api.http"]);
+                        message[".google.api.http"] = $root.google.api.HttpRule.fromObject(object[".google.api.http"], long + 1);
                     }
                     if (object[".google.api.methodSignature"]) {
                         if (!Array.isArray(object[".google.api.methodSignature"]))
@@ -9898,7 +10198,7 @@
                     if (object[".google.longrunning.operationInfo"] != null) {
                         if (typeof object[".google.longrunning.operationInfo"] !== "object")
                             throw TypeError(".google.protobuf.MethodOptions..google.longrunning.operationInfo: object expected");
-                        message[".google.longrunning.operationInfo"] = $root.google.longrunning.OperationInfo.fromObject(object[".google.longrunning.operationInfo"]);
+                        message[".google.longrunning.operationInfo"] = $root.google.longrunning.OperationInfo.fromObject(object[".google.longrunning.operationInfo"], long + 1);
                     }
                     return message;
                 };
@@ -10022,7 +10322,7 @@
                     this.name = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -10148,9 +10448,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                UninterpretedOption.decode = function decode(reader, length, error) {
+                UninterpretedOption.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.UninterpretedOption();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -10160,7 +10464,7 @@
                         case 2: {
                                 if (!(message.name && message.name.length))
                                     message.name = [];
-                                message.name.push($root.google.protobuf.UninterpretedOption.NamePart.decode(reader, reader.uint32()));
+                                message.name.push($root.google.protobuf.UninterpretedOption.NamePart.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 3: {
@@ -10188,7 +10492,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -10219,14 +10523,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                UninterpretedOption.verify = function verify(message) {
+                UninterpretedOption.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name")) {
                         if (!Array.isArray(message.name))
                             return "name: array expected";
                         for (var i = 0; i < message.name.length; ++i) {
-                            var error = $root.google.protobuf.UninterpretedOption.NamePart.verify(message.name[i]);
+                            var error = $root.google.protobuf.UninterpretedOption.NamePart.verify(message.name[i], long + 1);
                             if (error)
                                 return "name." + error;
                         }
@@ -10260,9 +10568,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.UninterpretedOption} UninterpretedOption
                  */
-                UninterpretedOption.fromObject = function fromObject(object) {
+                UninterpretedOption.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.UninterpretedOption)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.UninterpretedOption();
                     if (object.name) {
                         if (!Array.isArray(object.name))
@@ -10271,7 +10583,7 @@
                         for (var i = 0; i < object.name.length; ++i) {
                             if (typeof object.name[i] !== "object")
                                 throw TypeError(".google.protobuf.UninterpretedOption.name: object expected");
-                            message.name[i] = $root.google.protobuf.UninterpretedOption.NamePart.fromObject(object.name[i]);
+                            message.name[i] = $root.google.protobuf.UninterpretedOption.NamePart.fromObject(object.name[i], long + 1);
                         }
                     }
                     if (object.identifierValue != null)
@@ -10416,7 +10728,7 @@
                     function NamePart(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -10489,9 +10801,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    NamePart.decode = function decode(reader, length, error) {
+                    NamePart.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.UninterpretedOption.NamePart();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -10507,7 +10823,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -10542,9 +10858,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    NamePart.verify = function verify(message) {
+                    NamePart.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (!$util.isString(message.namePart))
                             return "namePart: string expected";
                         if (typeof message.isExtension !== "boolean")
@@ -10560,9 +10880,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.UninterpretedOption.NamePart} NamePart
                      */
-                    NamePart.fromObject = function fromObject(object) {
+                    NamePart.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.UninterpretedOption.NamePart)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.UninterpretedOption.NamePart();
                         if (object.namePart != null)
                             message.namePart = String(object.namePart);
@@ -10654,7 +10978,7 @@
                 function FeatureSet(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -10789,9 +11113,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                FeatureSet.decode = function decode(reader, length, error) {
+                FeatureSet.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FeatureSet();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -10831,7 +11159,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -10862,9 +11190,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FeatureSet.verify = function verify(message) {
+                FeatureSet.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.fieldPresence != null && message.hasOwnProperty("fieldPresence"))
                         switch (message.fieldPresence) {
                         default:
@@ -10951,9 +11283,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.FeatureSet} FeatureSet
                  */
-                FeatureSet.fromObject = function fromObject(object) {
+                FeatureSet.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.FeatureSet)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.FeatureSet();
                     switch (object.fieldPresence) {
                     default:
@@ -11331,7 +11667,7 @@
                     function VisibilityFeature(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -11386,9 +11722,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    VisibilityFeature.decode = function decode(reader, length, error) {
+                    VisibilityFeature.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FeatureSet.VisibilityFeature();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -11396,7 +11736,7 @@
                                 break;
                             switch (tag >>> 3) {
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -11427,9 +11767,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    VisibilityFeature.verify = function verify(message) {
+                    VisibilityFeature.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         return null;
                     };
     
@@ -11441,9 +11785,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.FeatureSet.VisibilityFeature} VisibilityFeature
                      */
-                    VisibilityFeature.fromObject = function fromObject(object) {
+                    VisibilityFeature.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.FeatureSet.VisibilityFeature)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         return new $root.google.protobuf.FeatureSet.VisibilityFeature();
                     };
     
@@ -11535,7 +11883,7 @@
                     this.defaults = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -11621,9 +11969,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                FeatureSetDefaults.decode = function decode(reader, length, error) {
+                FeatureSetDefaults.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FeatureSetDefaults();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -11633,7 +11985,7 @@
                         case 1: {
                                 if (!(message.defaults && message.defaults.length))
                                     message.defaults = [];
-                                message.defaults.push($root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.decode(reader, reader.uint32()));
+                                message.defaults.push($root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 4: {
@@ -11645,7 +11997,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -11676,14 +12028,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FeatureSetDefaults.verify = function verify(message) {
+                FeatureSetDefaults.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.defaults != null && message.hasOwnProperty("defaults")) {
                         if (!Array.isArray(message.defaults))
                             return "defaults: array expected";
                         for (var i = 0; i < message.defaults.length; ++i) {
-                            var error = $root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.verify(message.defaults[i]);
+                            var error = $root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.verify(message.defaults[i], long + 1);
                             if (error)
                                 return "defaults." + error;
                         }
@@ -11735,9 +12091,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.FeatureSetDefaults} FeatureSetDefaults
                  */
-                FeatureSetDefaults.fromObject = function fromObject(object) {
+                FeatureSetDefaults.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.FeatureSetDefaults)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.FeatureSetDefaults();
                     if (object.defaults) {
                         if (!Array.isArray(object.defaults))
@@ -11746,7 +12106,7 @@
                         for (var i = 0; i < object.defaults.length; ++i) {
                             if (typeof object.defaults[i] !== "object")
                                 throw TypeError(".google.protobuf.FeatureSetDefaults.defaults: object expected");
-                            message.defaults[i] = $root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.fromObject(object.defaults[i]);
+                            message.defaults[i] = $root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.fromObject(object.defaults[i], long + 1);
                         }
                     }
                     switch (object.minimumEdition) {
@@ -11943,7 +12303,7 @@
                     function FeatureSetEditionDefault(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -12028,9 +12388,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    FeatureSetEditionDefault.decode = function decode(reader, length, error) {
+                    FeatureSetEditionDefault.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -12042,15 +12406,15 @@
                                     break;
                                 }
                             case 4: {
-                                    message.overridableFeatures = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                    message.overridableFeatures = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
-                                    message.fixedFeatures = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32());
+                                    message.fixedFeatures = $root.google.protobuf.FeatureSet.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -12081,9 +12445,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    FeatureSetEditionDefault.verify = function verify(message) {
+                    FeatureSetEditionDefault.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.edition != null && message.hasOwnProperty("edition"))
                             switch (message.edition) {
                             default:
@@ -12103,12 +12471,12 @@
                                 break;
                             }
                         if (message.overridableFeatures != null && message.hasOwnProperty("overridableFeatures")) {
-                            var error = $root.google.protobuf.FeatureSet.verify(message.overridableFeatures);
+                            var error = $root.google.protobuf.FeatureSet.verify(message.overridableFeatures, long + 1);
                             if (error)
                                 return "overridableFeatures." + error;
                         }
                         if (message.fixedFeatures != null && message.hasOwnProperty("fixedFeatures")) {
-                            var error = $root.google.protobuf.FeatureSet.verify(message.fixedFeatures);
+                            var error = $root.google.protobuf.FeatureSet.verify(message.fixedFeatures, long + 1);
                             if (error)
                                 return "fixedFeatures." + error;
                         }
@@ -12123,9 +12491,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault} FeatureSetEditionDefault
                      */
-                    FeatureSetEditionDefault.fromObject = function fromObject(object) {
+                    FeatureSetEditionDefault.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault();
                         switch (object.edition) {
                         default:
@@ -12186,12 +12558,12 @@
                         if (object.overridableFeatures != null) {
                             if (typeof object.overridableFeatures !== "object")
                                 throw TypeError(".google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.overridableFeatures: object expected");
-                            message.overridableFeatures = $root.google.protobuf.FeatureSet.fromObject(object.overridableFeatures);
+                            message.overridableFeatures = $root.google.protobuf.FeatureSet.fromObject(object.overridableFeatures, long + 1);
                         }
                         if (object.fixedFeatures != null) {
                             if (typeof object.fixedFeatures !== "object")
                                 throw TypeError(".google.protobuf.FeatureSetDefaults.FeatureSetEditionDefault.fixedFeatures: object expected");
-                            message.fixedFeatures = $root.google.protobuf.FeatureSet.fromObject(object.fixedFeatures);
+                            message.fixedFeatures = $root.google.protobuf.FeatureSet.fromObject(object.fixedFeatures, long + 1);
                         }
                         return message;
                     };
@@ -12276,7 +12648,7 @@
                     this.location = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -12342,9 +12714,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                SourceCodeInfo.decode = function decode(reader, length, error) {
+                SourceCodeInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.SourceCodeInfo();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -12354,11 +12730,11 @@
                         case 1: {
                                 if (!(message.location && message.location.length))
                                     message.location = [];
-                                message.location.push($root.google.protobuf.SourceCodeInfo.Location.decode(reader, reader.uint32()));
+                                message.location.push($root.google.protobuf.SourceCodeInfo.Location.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -12389,14 +12765,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                SourceCodeInfo.verify = function verify(message) {
+                SourceCodeInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.location != null && message.hasOwnProperty("location")) {
                         if (!Array.isArray(message.location))
                             return "location: array expected";
                         for (var i = 0; i < message.location.length; ++i) {
-                            var error = $root.google.protobuf.SourceCodeInfo.Location.verify(message.location[i]);
+                            var error = $root.google.protobuf.SourceCodeInfo.Location.verify(message.location[i], long + 1);
                             if (error)
                                 return "location." + error;
                         }
@@ -12412,9 +12792,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.SourceCodeInfo} SourceCodeInfo
                  */
-                SourceCodeInfo.fromObject = function fromObject(object) {
+                SourceCodeInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.SourceCodeInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.SourceCodeInfo();
                     if (object.location) {
                         if (!Array.isArray(object.location))
@@ -12423,7 +12807,7 @@
                         for (var i = 0; i < object.location.length; ++i) {
                             if (typeof object.location[i] !== "object")
                                 throw TypeError(".google.protobuf.SourceCodeInfo.location: object expected");
-                            message.location[i] = $root.google.protobuf.SourceCodeInfo.Location.fromObject(object.location[i]);
+                            message.location[i] = $root.google.protobuf.SourceCodeInfo.Location.fromObject(object.location[i], long + 1);
                         }
                     }
                     return message;
@@ -12505,7 +12889,7 @@
                         this.leadingDetachedComments = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -12619,9 +13003,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Location.decode = function decode(reader, length, error) {
+                    Location.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.SourceCodeInfo.Location();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -12665,7 +13053,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -12696,9 +13084,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Location.verify = function verify(message) {
+                    Location.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.path != null && message.hasOwnProperty("path")) {
                             if (!Array.isArray(message.path))
                                 return "path: array expected";
@@ -12737,9 +13129,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.SourceCodeInfo.Location} Location
                      */
-                    Location.fromObject = function fromObject(object) {
+                    Location.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.SourceCodeInfo.Location)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.SourceCodeInfo.Location();
                         if (object.path) {
                             if (!Array.isArray(object.path))
@@ -12866,7 +13262,7 @@
                     this.annotation = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -12932,9 +13328,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                GeneratedCodeInfo.decode = function decode(reader, length, error) {
+                GeneratedCodeInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.GeneratedCodeInfo();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -12944,11 +13344,11 @@
                         case 1: {
                                 if (!(message.annotation && message.annotation.length))
                                     message.annotation = [];
-                                message.annotation.push($root.google.protobuf.GeneratedCodeInfo.Annotation.decode(reader, reader.uint32()));
+                                message.annotation.push($root.google.protobuf.GeneratedCodeInfo.Annotation.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -12979,14 +13379,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                GeneratedCodeInfo.verify = function verify(message) {
+                GeneratedCodeInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.annotation != null && message.hasOwnProperty("annotation")) {
                         if (!Array.isArray(message.annotation))
                             return "annotation: array expected";
                         for (var i = 0; i < message.annotation.length; ++i) {
-                            var error = $root.google.protobuf.GeneratedCodeInfo.Annotation.verify(message.annotation[i]);
+                            var error = $root.google.protobuf.GeneratedCodeInfo.Annotation.verify(message.annotation[i], long + 1);
                             if (error)
                                 return "annotation." + error;
                         }
@@ -13002,9 +13406,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.GeneratedCodeInfo} GeneratedCodeInfo
                  */
-                GeneratedCodeInfo.fromObject = function fromObject(object) {
+                GeneratedCodeInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.GeneratedCodeInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.GeneratedCodeInfo();
                     if (object.annotation) {
                         if (!Array.isArray(object.annotation))
@@ -13013,7 +13421,7 @@
                         for (var i = 0; i < object.annotation.length; ++i) {
                             if (typeof object.annotation[i] !== "object")
                                 throw TypeError(".google.protobuf.GeneratedCodeInfo.annotation: object expected");
-                            message.annotation[i] = $root.google.protobuf.GeneratedCodeInfo.Annotation.fromObject(object.annotation[i]);
+                            message.annotation[i] = $root.google.protobuf.GeneratedCodeInfo.Annotation.fromObject(object.annotation[i], long + 1);
                         }
                     }
                     return message;
@@ -13093,7 +13501,7 @@
                         this.path = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -13202,9 +13610,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Annotation.decode = function decode(reader, length, error) {
+                    Annotation.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.GeneratedCodeInfo.Annotation();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -13239,7 +13651,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -13270,9 +13682,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Annotation.verify = function verify(message) {
+                    Annotation.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.path != null && message.hasOwnProperty("path")) {
                             if (!Array.isArray(message.path))
                                 return "path: array expected";
@@ -13309,9 +13725,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.protobuf.GeneratedCodeInfo.Annotation} Annotation
                      */
-                    Annotation.fromObject = function fromObject(object) {
+                    Annotation.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.protobuf.GeneratedCodeInfo.Annotation)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.protobuf.GeneratedCodeInfo.Annotation();
                         if (object.path) {
                             if (!Array.isArray(object.path))
@@ -13471,7 +13891,7 @@
                 function Any(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -13546,9 +13966,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Any.decode = function decode(reader, length, error) {
+                Any.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.Any();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -13564,7 +13988,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -13595,9 +14019,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Any.verify = function verify(message) {
+                Any.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.type_url != null && message.hasOwnProperty("type_url"))
                         if (!$util.isString(message.type_url))
                             return "type_url: string expected";
@@ -13615,9 +14043,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.Any} Any
                  */
-                Any.fromObject = function fromObject(object) {
+                Any.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.Any)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.Any();
                     if (object.type_url != null)
                         message.type_url = String(object.type_url);
@@ -13707,7 +14139,7 @@
                 function Empty(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -13762,9 +14194,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Empty.decode = function decode(reader, length, error) {
+                Empty.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.Empty();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -13772,7 +14208,7 @@
                             break;
                         switch (tag >>> 3) {
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -13803,9 +14239,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Empty.verify = function verify(message) {
+                Empty.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     return null;
                 };
     
@@ -13817,9 +14257,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.Empty} Empty
                  */
-                Empty.fromObject = function fromObject(object) {
+                Empty.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.Empty)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     return new $root.google.protobuf.Empty();
                 };
     
@@ -13886,7 +14330,7 @@
                     this.paths = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -13952,9 +14396,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                FieldMask.decode = function decode(reader, length, error) {
+                FieldMask.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FieldMask();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -13968,7 +14416,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -13999,9 +14447,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                FieldMask.verify = function verify(message) {
+                FieldMask.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.paths != null && message.hasOwnProperty("paths")) {
                         if (!Array.isArray(message.paths))
                             return "paths: array expected";
@@ -14020,9 +14472,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.FieldMask} FieldMask
                  */
-                FieldMask.fromObject = function fromObject(object) {
+                FieldMask.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.FieldMask)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.FieldMask();
                     if (object.paths) {
                         if (!Array.isArray(object.paths))
@@ -14107,7 +14563,7 @@
                 function Timestamp(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -14182,9 +14638,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Timestamp.decode = function decode(reader, length, error) {
+                Timestamp.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.Timestamp();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -14200,7 +14660,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -14231,9 +14691,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Timestamp.verify = function verify(message) {
+                Timestamp.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.seconds != null && message.hasOwnProperty("seconds"))
                         if (!$util.isInteger(message.seconds) && !(message.seconds && $util.isInteger(message.seconds.low) && $util.isInteger(message.seconds.high)))
                             return "seconds: integer|Long expected";
@@ -14251,9 +14715,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.Timestamp} Timestamp
                  */
-                Timestamp.fromObject = function fromObject(object) {
+                Timestamp.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.Timestamp)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.Timestamp();
                     if (object.seconds != null)
                         if ($util.Long)
@@ -14350,7 +14818,7 @@
                     this.fields = {};
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -14418,9 +14886,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Struct.decode = function decode(reader, length, error) {
+                Struct.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.Struct(), key, value;
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -14440,18 +14912,20 @@
                                         key = reader.string();
                                         break;
                                     case 2:
-                                        value = $root.google.protobuf.Value.decode(reader, reader.uint32());
+                                        value = $root.google.protobuf.Value.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     default:
-                                        reader.skipType(tag2 & 7);
+                                        reader.skipType(tag2 & 7, long);
                                         break;
                                     }
                                 }
+                                if (key === "__proto__")
+                                    $util.makeProp(message.fields, key);
                                 message.fields[key] = value;
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -14482,15 +14956,19 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Struct.verify = function verify(message) {
+                Struct.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.fields != null && message.hasOwnProperty("fields")) {
                         if (!$util.isObject(message.fields))
                             return "fields: object expected";
                         var key = Object.keys(message.fields);
                         for (var i = 0; i < key.length; ++i) {
-                            var error = $root.google.protobuf.Value.verify(message.fields[key[i]]);
+                            var error = $root.google.protobuf.Value.verify(message.fields[key[i]], long + 1);
                             if (error)
                                 return "fields." + error;
                         }
@@ -14506,18 +14984,24 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.Struct} Struct
                  */
-                Struct.fromObject = function fromObject(object) {
+                Struct.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.Struct)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.Struct();
                     if (object.fields) {
                         if (typeof object.fields !== "object")
                             throw TypeError(".google.protobuf.Struct.fields: object expected");
                         message.fields = {};
                         for (var keys = Object.keys(object.fields), i = 0; i < keys.length; ++i) {
+                            if (keys[i] === "__proto__")
+                                $util.makeProp(message.fields, keys[i]);
                             if (typeof object.fields[keys[i]] !== "object")
                                 throw TypeError(".google.protobuf.Struct.fields: object expected");
-                            message.fields[keys[i]] = $root.google.protobuf.Value.fromObject(object.fields[keys[i]]);
+                            message.fields[keys[i]] = $root.google.protobuf.Value.fromObject(object.fields[keys[i]], long + 1);
                         }
                     }
                     return message;
@@ -14541,8 +15025,11 @@
                     var keys2;
                     if (message.fields && (keys2 = Object.keys(message.fields)).length) {
                         object.fields = {};
-                        for (var j = 0; j < keys2.length; ++j)
+                        for (var j = 0; j < keys2.length; ++j) {
+                            if (keys2[j] === "__proto__")
+                                $util.makeProp(object.fields, keys2[j]);
                             object.fields[keys2[j]] = $root.google.protobuf.Value.toObject(message.fields[keys2[j]], options);
+                        }
                     }
                     return object;
                 };
@@ -14601,7 +15088,7 @@
                 function Value(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -14730,9 +15217,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Value.decode = function decode(reader, length, error) {
+                Value.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.Value();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -14756,15 +15247,15 @@
                                 break;
                             }
                         case 5: {
-                                message.structValue = $root.google.protobuf.Struct.decode(reader, reader.uint32());
+                                message.structValue = $root.google.protobuf.Struct.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 6: {
-                                message.listValue = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                message.listValue = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -14795,9 +15286,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Value.verify = function verify(message) {
+                Value.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     var properties = {};
                     if (message.nullValue != null && message.hasOwnProperty("nullValue")) {
                         properties.kind = 1;
@@ -14834,7 +15329,7 @@
                             return "kind: multiple values";
                         properties.kind = 1;
                         {
-                            var error = $root.google.protobuf.Struct.verify(message.structValue);
+                            var error = $root.google.protobuf.Struct.verify(message.structValue, long + 1);
                             if (error)
                                 return "structValue." + error;
                         }
@@ -14844,7 +15339,7 @@
                             return "kind: multiple values";
                         properties.kind = 1;
                         {
-                            var error = $root.google.protobuf.ListValue.verify(message.listValue);
+                            var error = $root.google.protobuf.ListValue.verify(message.listValue, long + 1);
                             if (error)
                                 return "listValue." + error;
                         }
@@ -14860,9 +15355,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.Value} Value
                  */
-                Value.fromObject = function fromObject(object) {
+                Value.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.Value)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.Value();
                     switch (object.nullValue) {
                     default:
@@ -14885,12 +15384,12 @@
                     if (object.structValue != null) {
                         if (typeof object.structValue !== "object")
                             throw TypeError(".google.protobuf.Value.structValue: object expected");
-                        message.structValue = $root.google.protobuf.Struct.fromObject(object.structValue);
+                        message.structValue = $root.google.protobuf.Struct.fromObject(object.structValue, long + 1);
                     }
                     if (object.listValue != null) {
                         if (typeof object.listValue !== "object")
                             throw TypeError(".google.protobuf.Value.listValue: object expected");
-                        message.listValue = $root.google.protobuf.ListValue.fromObject(object.listValue);
+                        message.listValue = $root.google.protobuf.ListValue.fromObject(object.listValue, long + 1);
                     }
                     return message;
                 };
@@ -15003,7 +15502,7 @@
                     this.values = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -15069,9 +15568,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ListValue.decode = function decode(reader, length, error) {
+                ListValue.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.ListValue();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -15081,11 +15584,11 @@
                         case 1: {
                                 if (!(message.values && message.values.length))
                                     message.values = [];
-                                message.values.push($root.google.protobuf.Value.decode(reader, reader.uint32()));
+                                message.values.push($root.google.protobuf.Value.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -15116,14 +15619,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ListValue.verify = function verify(message) {
+                ListValue.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.values != null && message.hasOwnProperty("values")) {
                         if (!Array.isArray(message.values))
                             return "values: array expected";
                         for (var i = 0; i < message.values.length; ++i) {
-                            var error = $root.google.protobuf.Value.verify(message.values[i]);
+                            var error = $root.google.protobuf.Value.verify(message.values[i], long + 1);
                             if (error)
                                 return "values." + error;
                         }
@@ -15139,9 +15646,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.protobuf.ListValue} ListValue
                  */
-                ListValue.fromObject = function fromObject(object) {
+                ListValue.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.protobuf.ListValue)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.protobuf.ListValue();
                     if (object.values) {
                         if (!Array.isArray(object.values))
@@ -15150,7 +15661,7 @@
                         for (var i = 0; i < object.values.length; ++i) {
                             if (typeof object.values[i] !== "object")
                                 throw TypeError(".google.protobuf.ListValue.values: object expected");
-                            message.values[i] = $root.google.protobuf.Value.fromObject(object.values[i]);
+                            message.values[i] = $root.google.protobuf.Value.fromObject(object.values[i], long + 1);
                         }
                     }
                     return message;
@@ -15243,7 +15754,7 @@
                     this.metadata = {};
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -15329,9 +15840,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ErrorInfo.decode = function decode(reader, length, error) {
+                ErrorInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.ErrorInfo(), key, value;
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -15362,15 +15877,17 @@
                                         value = reader.string();
                                         break;
                                     default:
-                                        reader.skipType(tag2 & 7);
+                                        reader.skipType(tag2 & 7, long);
                                         break;
                                     }
                                 }
+                                if (key === "__proto__")
+                                    $util.makeProp(message.metadata, key);
                                 message.metadata[key] = value;
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -15401,9 +15918,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ErrorInfo.verify = function verify(message) {
+                ErrorInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.reason != null && message.hasOwnProperty("reason"))
                         if (!$util.isString(message.reason))
                             return "reason: string expected";
@@ -15429,9 +15950,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.ErrorInfo} ErrorInfo
                  */
-                ErrorInfo.fromObject = function fromObject(object) {
+                ErrorInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.ErrorInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.ErrorInfo();
                     if (object.reason != null)
                         message.reason = String(object.reason);
@@ -15441,8 +15966,11 @@
                         if (typeof object.metadata !== "object")
                             throw TypeError(".google.rpc.ErrorInfo.metadata: object expected");
                         message.metadata = {};
-                        for (var keys = Object.keys(object.metadata), i = 0; i < keys.length; ++i)
+                        for (var keys = Object.keys(object.metadata), i = 0; i < keys.length; ++i) {
+                            if (keys[i] === "__proto__")
+                                $util.makeProp(message.metadata, keys[i]);
                             message.metadata[keys[i]] = String(object.metadata[keys[i]]);
+                        }
                     }
                     return message;
                 };
@@ -15473,8 +16001,11 @@
                     var keys2;
                     if (message.metadata && (keys2 = Object.keys(message.metadata)).length) {
                         object.metadata = {};
-                        for (var j = 0; j < keys2.length; ++j)
+                        for (var j = 0; j < keys2.length; ++j) {
+                            if (keys2[j] === "__proto__")
+                                $util.makeProp(object.metadata, keys2[j]);
                             object.metadata[keys2[j]] = message.metadata[keys2[j]];
+                        }
                     }
                     return object;
                 };
@@ -15528,7 +16059,7 @@
                 function RetryInfo(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -15593,9 +16124,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                RetryInfo.decode = function decode(reader, length, error) {
+                RetryInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.RetryInfo();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -15603,11 +16138,11 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.retryDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                message.retryDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -15638,11 +16173,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                RetryInfo.verify = function verify(message) {
+                RetryInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.retryDelay != null && message.hasOwnProperty("retryDelay")) {
-                        var error = $root.google.protobuf.Duration.verify(message.retryDelay);
+                        var error = $root.google.protobuf.Duration.verify(message.retryDelay, long + 1);
                         if (error)
                             return "retryDelay." + error;
                     }
@@ -15657,14 +16196,18 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.RetryInfo} RetryInfo
                  */
-                RetryInfo.fromObject = function fromObject(object) {
+                RetryInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.RetryInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.RetryInfo();
                     if (object.retryDelay != null) {
                         if (typeof object.retryDelay !== "object")
                             throw TypeError(".google.rpc.RetryInfo.retryDelay: object expected");
-                        message.retryDelay = $root.google.protobuf.Duration.fromObject(object.retryDelay);
+                        message.retryDelay = $root.google.protobuf.Duration.fromObject(object.retryDelay, long + 1);
                     }
                     return message;
                 };
@@ -15740,7 +16283,7 @@
                     this.stackEntries = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -15816,9 +16359,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                DebugInfo.decode = function decode(reader, length, error) {
+                DebugInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.DebugInfo();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -15836,7 +16383,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -15867,9 +16414,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                DebugInfo.verify = function verify(message) {
+                DebugInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.stackEntries != null && message.hasOwnProperty("stackEntries")) {
                         if (!Array.isArray(message.stackEntries))
                             return "stackEntries: array expected";
@@ -15891,9 +16442,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.DebugInfo} DebugInfo
                  */
-                DebugInfo.fromObject = function fromObject(object) {
+                DebugInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.DebugInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.DebugInfo();
                     if (object.stackEntries) {
                         if (!Array.isArray(object.stackEntries))
@@ -15984,7 +16539,7 @@
                     this.violations = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -16050,9 +16605,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                QuotaFailure.decode = function decode(reader, length, error) {
+                QuotaFailure.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.QuotaFailure();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -16062,11 +16621,11 @@
                         case 1: {
                                 if (!(message.violations && message.violations.length))
                                     message.violations = [];
-                                message.violations.push($root.google.rpc.QuotaFailure.Violation.decode(reader, reader.uint32()));
+                                message.violations.push($root.google.rpc.QuotaFailure.Violation.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -16097,14 +16656,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                QuotaFailure.verify = function verify(message) {
+                QuotaFailure.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.violations != null && message.hasOwnProperty("violations")) {
                         if (!Array.isArray(message.violations))
                             return "violations: array expected";
                         for (var i = 0; i < message.violations.length; ++i) {
-                            var error = $root.google.rpc.QuotaFailure.Violation.verify(message.violations[i]);
+                            var error = $root.google.rpc.QuotaFailure.Violation.verify(message.violations[i], long + 1);
                             if (error)
                                 return "violations." + error;
                         }
@@ -16120,9 +16683,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.QuotaFailure} QuotaFailure
                  */
-                QuotaFailure.fromObject = function fromObject(object) {
+                QuotaFailure.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.QuotaFailure)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.QuotaFailure();
                     if (object.violations) {
                         if (!Array.isArray(object.violations))
@@ -16131,7 +16698,7 @@
                         for (var i = 0; i < object.violations.length; ++i) {
                             if (typeof object.violations[i] !== "object")
                                 throw TypeError(".google.rpc.QuotaFailure.violations: object expected");
-                            message.violations[i] = $root.google.rpc.QuotaFailure.Violation.fromObject(object.violations[i]);
+                            message.violations[i] = $root.google.rpc.QuotaFailure.Violation.fromObject(object.violations[i], long + 1);
                         }
                     }
                     return message;
@@ -16207,7 +16774,7 @@
                     function Violation(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -16282,9 +16849,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Violation.decode = function decode(reader, length, error) {
+                    Violation.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.QuotaFailure.Violation();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -16300,7 +16871,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -16331,9 +16902,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Violation.verify = function verify(message) {
+                    Violation.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.subject != null && message.hasOwnProperty("subject"))
                             if (!$util.isString(message.subject))
                                 return "subject: string expected";
@@ -16351,9 +16926,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.rpc.QuotaFailure.Violation} Violation
                      */
-                    Violation.fromObject = function fromObject(object) {
+                    Violation.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.rpc.QuotaFailure.Violation)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.rpc.QuotaFailure.Violation();
                         if (object.subject != null)
                             message.subject = String(object.subject);
@@ -16439,7 +17018,7 @@
                     this.violations = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -16505,9 +17084,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                PreconditionFailure.decode = function decode(reader, length, error) {
+                PreconditionFailure.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.PreconditionFailure();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -16517,11 +17100,11 @@
                         case 1: {
                                 if (!(message.violations && message.violations.length))
                                     message.violations = [];
-                                message.violations.push($root.google.rpc.PreconditionFailure.Violation.decode(reader, reader.uint32()));
+                                message.violations.push($root.google.rpc.PreconditionFailure.Violation.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -16552,14 +17135,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                PreconditionFailure.verify = function verify(message) {
+                PreconditionFailure.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.violations != null && message.hasOwnProperty("violations")) {
                         if (!Array.isArray(message.violations))
                             return "violations: array expected";
                         for (var i = 0; i < message.violations.length; ++i) {
-                            var error = $root.google.rpc.PreconditionFailure.Violation.verify(message.violations[i]);
+                            var error = $root.google.rpc.PreconditionFailure.Violation.verify(message.violations[i], long + 1);
                             if (error)
                                 return "violations." + error;
                         }
@@ -16575,9 +17162,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.PreconditionFailure} PreconditionFailure
                  */
-                PreconditionFailure.fromObject = function fromObject(object) {
+                PreconditionFailure.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.PreconditionFailure)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.PreconditionFailure();
                     if (object.violations) {
                         if (!Array.isArray(object.violations))
@@ -16586,7 +17177,7 @@
                         for (var i = 0; i < object.violations.length; ++i) {
                             if (typeof object.violations[i] !== "object")
                                 throw TypeError(".google.rpc.PreconditionFailure.violations: object expected");
-                            message.violations[i] = $root.google.rpc.PreconditionFailure.Violation.fromObject(object.violations[i]);
+                            message.violations[i] = $root.google.rpc.PreconditionFailure.Violation.fromObject(object.violations[i], long + 1);
                         }
                     }
                     return message;
@@ -16663,7 +17254,7 @@
                     function Violation(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -16748,9 +17339,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Violation.decode = function decode(reader, length, error) {
+                    Violation.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.PreconditionFailure.Violation();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -16770,7 +17365,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -16801,9 +17396,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Violation.verify = function verify(message) {
+                    Violation.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.type != null && message.hasOwnProperty("type"))
                             if (!$util.isString(message.type))
                                 return "type: string expected";
@@ -16824,9 +17423,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.rpc.PreconditionFailure.Violation} Violation
                      */
-                    Violation.fromObject = function fromObject(object) {
+                    Violation.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.rpc.PreconditionFailure.Violation)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.rpc.PreconditionFailure.Violation();
                         if (object.type != null)
                             message.type = String(object.type);
@@ -16917,7 +17520,7 @@
                     this.fieldViolations = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -16983,9 +17586,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                BadRequest.decode = function decode(reader, length, error) {
+                BadRequest.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.BadRequest();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -16995,11 +17602,11 @@
                         case 1: {
                                 if (!(message.fieldViolations && message.fieldViolations.length))
                                     message.fieldViolations = [];
-                                message.fieldViolations.push($root.google.rpc.BadRequest.FieldViolation.decode(reader, reader.uint32()));
+                                message.fieldViolations.push($root.google.rpc.BadRequest.FieldViolation.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -17030,14 +17637,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                BadRequest.verify = function verify(message) {
+                BadRequest.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.fieldViolations != null && message.hasOwnProperty("fieldViolations")) {
                         if (!Array.isArray(message.fieldViolations))
                             return "fieldViolations: array expected";
                         for (var i = 0; i < message.fieldViolations.length; ++i) {
-                            var error = $root.google.rpc.BadRequest.FieldViolation.verify(message.fieldViolations[i]);
+                            var error = $root.google.rpc.BadRequest.FieldViolation.verify(message.fieldViolations[i], long + 1);
                             if (error)
                                 return "fieldViolations." + error;
                         }
@@ -17053,9 +17664,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.BadRequest} BadRequest
                  */
-                BadRequest.fromObject = function fromObject(object) {
+                BadRequest.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.BadRequest)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.BadRequest();
                     if (object.fieldViolations) {
                         if (!Array.isArray(object.fieldViolations))
@@ -17064,7 +17679,7 @@
                         for (var i = 0; i < object.fieldViolations.length; ++i) {
                             if (typeof object.fieldViolations[i] !== "object")
                                 throw TypeError(".google.rpc.BadRequest.fieldViolations: object expected");
-                            message.fieldViolations[i] = $root.google.rpc.BadRequest.FieldViolation.fromObject(object.fieldViolations[i]);
+                            message.fieldViolations[i] = $root.google.rpc.BadRequest.FieldViolation.fromObject(object.fieldViolations[i], long + 1);
                         }
                     }
                     return message;
@@ -17140,7 +17755,7 @@
                     function FieldViolation(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -17215,9 +17830,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    FieldViolation.decode = function decode(reader, length, error) {
+                    FieldViolation.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.BadRequest.FieldViolation();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -17233,7 +17852,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -17264,9 +17883,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    FieldViolation.verify = function verify(message) {
+                    FieldViolation.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.field != null && message.hasOwnProperty("field"))
                             if (!$util.isString(message.field))
                                 return "field: string expected";
@@ -17284,9 +17907,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.rpc.BadRequest.FieldViolation} FieldViolation
                      */
-                    FieldViolation.fromObject = function fromObject(object) {
+                    FieldViolation.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.rpc.BadRequest.FieldViolation)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.rpc.BadRequest.FieldViolation();
                         if (object.field != null)
                             message.field = String(object.field);
@@ -17372,7 +17999,7 @@
                 function RequestInfo(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -17447,9 +18074,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                RequestInfo.decode = function decode(reader, length, error) {
+                RequestInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.RequestInfo();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -17465,7 +18096,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -17496,9 +18127,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                RequestInfo.verify = function verify(message) {
+                RequestInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.requestId != null && message.hasOwnProperty("requestId"))
                         if (!$util.isString(message.requestId))
                             return "requestId: string expected";
@@ -17516,9 +18151,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.RequestInfo} RequestInfo
                  */
-                RequestInfo.fromObject = function fromObject(object) {
+                RequestInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.RequestInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.RequestInfo();
                     if (object.requestId != null)
                         message.requestId = String(object.requestId);
@@ -17603,7 +18242,7 @@
                 function ResourceInfo(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -17698,9 +18337,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ResourceInfo.decode = function decode(reader, length, error) {
+                ResourceInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.ResourceInfo();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -17724,7 +18367,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -17755,9 +18398,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ResourceInfo.verify = function verify(message) {
+                ResourceInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.resourceType != null && message.hasOwnProperty("resourceType"))
                         if (!$util.isString(message.resourceType))
                             return "resourceType: string expected";
@@ -17781,9 +18428,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.ResourceInfo} ResourceInfo
                  */
-                ResourceInfo.fromObject = function fromObject(object) {
+                ResourceInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.ResourceInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.ResourceInfo();
                     if (object.resourceType != null)
                         message.resourceType = String(object.resourceType);
@@ -17876,7 +18527,7 @@
                     this.links = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -17942,9 +18593,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Help.decode = function decode(reader, length, error) {
+                Help.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.Help();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -17954,11 +18609,11 @@
                         case 1: {
                                 if (!(message.links && message.links.length))
                                     message.links = [];
-                                message.links.push($root.google.rpc.Help.Link.decode(reader, reader.uint32()));
+                                message.links.push($root.google.rpc.Help.Link.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -17989,14 +18644,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Help.verify = function verify(message) {
+                Help.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.links != null && message.hasOwnProperty("links")) {
                         if (!Array.isArray(message.links))
                             return "links: array expected";
                         for (var i = 0; i < message.links.length; ++i) {
-                            var error = $root.google.rpc.Help.Link.verify(message.links[i]);
+                            var error = $root.google.rpc.Help.Link.verify(message.links[i], long + 1);
                             if (error)
                                 return "links." + error;
                         }
@@ -18012,9 +18671,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.Help} Help
                  */
-                Help.fromObject = function fromObject(object) {
+                Help.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.Help)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.Help();
                     if (object.links) {
                         if (!Array.isArray(object.links))
@@ -18023,7 +18686,7 @@
                         for (var i = 0; i < object.links.length; ++i) {
                             if (typeof object.links[i] !== "object")
                                 throw TypeError(".google.rpc.Help.links: object expected");
-                            message.links[i] = $root.google.rpc.Help.Link.fromObject(object.links[i]);
+                            message.links[i] = $root.google.rpc.Help.Link.fromObject(object.links[i], long + 1);
                         }
                     }
                     return message;
@@ -18099,7 +18762,7 @@
                     function Link(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -18174,9 +18837,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Link.decode = function decode(reader, length, error) {
+                    Link.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.Help.Link();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -18192,7 +18859,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -18223,9 +18890,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Link.verify = function verify(message) {
+                    Link.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.description != null && message.hasOwnProperty("description"))
                             if (!$util.isString(message.description))
                                 return "description: string expected";
@@ -18243,9 +18914,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.rpc.Help.Link} Link
                      */
-                    Link.fromObject = function fromObject(object) {
+                    Link.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.rpc.Help.Link)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.rpc.Help.Link();
                         if (object.description != null)
                             message.description = String(object.description);
@@ -18331,7 +19006,7 @@
                 function LocalizedMessage(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -18406,9 +19081,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                LocalizedMessage.decode = function decode(reader, length, error) {
+                LocalizedMessage.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.LocalizedMessage();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -18424,7 +19103,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -18455,9 +19134,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                LocalizedMessage.verify = function verify(message) {
+                LocalizedMessage.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.locale != null && message.hasOwnProperty("locale"))
                         if (!$util.isString(message.locale))
                             return "locale: string expected";
@@ -18475,9 +19158,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.LocalizedMessage} LocalizedMessage
                  */
-                LocalizedMessage.fromObject = function fromObject(object) {
+                LocalizedMessage.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.LocalizedMessage)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.LocalizedMessage();
                     if (object.locale != null)
                         message.locale = String(object.locale);
@@ -18562,7 +19249,7 @@
                     this.details = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -18648,9 +19335,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Status.decode = function decode(reader, length, error) {
+                Status.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.rpc.Status();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -18668,11 +19359,11 @@
                         case 3: {
                                 if (!(message.details && message.details.length))
                                     message.details = [];
-                                message.details.push($root.google.protobuf.Any.decode(reader, reader.uint32()));
+                                message.details.push($root.google.protobuf.Any.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -18703,9 +19394,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Status.verify = function verify(message) {
+                Status.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.code != null && message.hasOwnProperty("code"))
                         if (!$util.isInteger(message.code))
                             return "code: integer expected";
@@ -18716,7 +19411,7 @@
                         if (!Array.isArray(message.details))
                             return "details: array expected";
                         for (var i = 0; i < message.details.length; ++i) {
-                            var error = $root.google.protobuf.Any.verify(message.details[i]);
+                            var error = $root.google.protobuf.Any.verify(message.details[i], long + 1);
                             if (error)
                                 return "details." + error;
                         }
@@ -18732,9 +19427,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.rpc.Status} Status
                  */
-                Status.fromObject = function fromObject(object) {
+                Status.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.rpc.Status)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.rpc.Status();
                     if (object.code != null)
                         message.code = object.code | 0;
@@ -18747,7 +19446,7 @@
                         for (var i = 0; i < object.details.length; ++i) {
                             if (typeof object.details[i] !== "object")
                                 throw TypeError(".google.rpc.Status.details: object expected");
-                            message.details[i] = $root.google.protobuf.Any.fromObject(object.details[i]);
+                            message.details[i] = $root.google.protobuf.Any.fromObject(object.details[i], long + 1);
                         }
                     }
                     return message;
@@ -18895,7 +19594,7 @@
                                 this.instancePartitions = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -19145,9 +19844,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            Backup.decode = function decode(reader, length, error) {
+                            Backup.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.Backup();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -19159,11 +19862,11 @@
                                             break;
                                         }
                                     case 9: {
-                                            message.versionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.versionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 1: {
@@ -19171,7 +19874,7 @@
                                             break;
                                         }
                                     case 4: {
-                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
@@ -19197,13 +19900,13 @@
                                             break;
                                         }
                                     case 8: {
-                                            message.encryptionInfo = $root.google.spanner.admin.database.v1.EncryptionInfo.decode(reader, reader.uint32());
+                                            message.encryptionInfo = $root.google.spanner.admin.database.v1.EncryptionInfo.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 13: {
                                             if (!(message.encryptionInformation && message.encryptionInformation.length))
                                                 message.encryptionInformation = [];
-                                            message.encryptionInformation.push($root.google.spanner.admin.database.v1.EncryptionInfo.decode(reader, reader.uint32()));
+                                            message.encryptionInformation.push($root.google.spanner.admin.database.v1.EncryptionInfo.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 10: {
@@ -19217,7 +19920,7 @@
                                             break;
                                         }
                                     case 12: {
-                                            message.maxExpireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.maxExpireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 14: {
@@ -19231,17 +19934,17 @@
                                             break;
                                         }
                                     case 18: {
-                                            message.oldestVersionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.oldestVersionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 19: {
                                             if (!(message.instancePartitions && message.instancePartitions.length))
                                                 message.instancePartitions = [];
-                                            message.instancePartitions.push($root.google.spanner.admin.database.v1.BackupInstancePartition.decode(reader, reader.uint32()));
+                                            message.instancePartitions.push($root.google.spanner.admin.database.v1.BackupInstancePartition.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -19272,19 +19975,23 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            Backup.verify = function verify(message) {
+                            Backup.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
                                 if (message.versionTime != null && message.hasOwnProperty("versionTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.versionTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.versionTime, long + 1);
                                     if (error)
                                         return "versionTime." + error;
                                 }
                                 if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime, long + 1);
                                     if (error)
                                         return "expireTime." + error;
                                 }
@@ -19292,7 +19999,7 @@
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
                                 if (message.createTime != null && message.hasOwnProperty("createTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime, long + 1);
                                     if (error)
                                         return "createTime." + error;
                                 }
@@ -19322,7 +20029,7 @@
                                             return "referencingDatabases: string[] expected";
                                 }
                                 if (message.encryptionInfo != null && message.hasOwnProperty("encryptionInfo")) {
-                                    var error = $root.google.spanner.admin.database.v1.EncryptionInfo.verify(message.encryptionInfo);
+                                    var error = $root.google.spanner.admin.database.v1.EncryptionInfo.verify(message.encryptionInfo, long + 1);
                                     if (error)
                                         return "encryptionInfo." + error;
                                 }
@@ -19330,7 +20037,7 @@
                                     if (!Array.isArray(message.encryptionInformation))
                                         return "encryptionInformation: array expected";
                                     for (var i = 0; i < message.encryptionInformation.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.EncryptionInfo.verify(message.encryptionInformation[i]);
+                                        var error = $root.google.spanner.admin.database.v1.EncryptionInfo.verify(message.encryptionInformation[i], long + 1);
                                         if (error)
                                             return "encryptionInformation." + error;
                                     }
@@ -19352,7 +20059,7 @@
                                             return "referencingBackups: string[] expected";
                                 }
                                 if (message.maxExpireTime != null && message.hasOwnProperty("maxExpireTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.maxExpireTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.maxExpireTime, long + 1);
                                     if (error)
                                         return "maxExpireTime." + error;
                                 }
@@ -19367,7 +20074,7 @@
                                     if (!$util.isString(message.incrementalBackupChainId))
                                         return "incrementalBackupChainId: string expected";
                                 if (message.oldestVersionTime != null && message.hasOwnProperty("oldestVersionTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.oldestVersionTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.oldestVersionTime, long + 1);
                                     if (error)
                                         return "oldestVersionTime." + error;
                                 }
@@ -19375,7 +20082,7 @@
                                     if (!Array.isArray(message.instancePartitions))
                                         return "instancePartitions: array expected";
                                     for (var i = 0; i < message.instancePartitions.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.BackupInstancePartition.verify(message.instancePartitions[i]);
+                                        var error = $root.google.spanner.admin.database.v1.BackupInstancePartition.verify(message.instancePartitions[i], long + 1);
                                         if (error)
                                             return "instancePartitions." + error;
                                     }
@@ -19391,28 +20098,32 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.Backup} Backup
                              */
-                            Backup.fromObject = function fromObject(object) {
+                            Backup.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.Backup)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.Backup();
                                 if (object.database != null)
                                     message.database = String(object.database);
                                 if (object.versionTime != null) {
                                     if (typeof object.versionTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Backup.versionTime: object expected");
-                                    message.versionTime = $root.google.protobuf.Timestamp.fromObject(object.versionTime);
+                                    message.versionTime = $root.google.protobuf.Timestamp.fromObject(object.versionTime, long + 1);
                                 }
                                 if (object.expireTime != null) {
                                     if (typeof object.expireTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Backup.expireTime: object expected");
-                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime, long + 1);
                                 }
                                 if (object.name != null)
                                     message.name = String(object.name);
                                 if (object.createTime != null) {
                                     if (typeof object.createTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Backup.createTime: object expected");
-                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime);
+                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime, long + 1);
                                 }
                                 if (object.sizeBytes != null)
                                     if ($util.Long)
@@ -19471,7 +20182,7 @@
                                 if (object.encryptionInfo != null) {
                                     if (typeof object.encryptionInfo !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Backup.encryptionInfo: object expected");
-                                    message.encryptionInfo = $root.google.spanner.admin.database.v1.EncryptionInfo.fromObject(object.encryptionInfo);
+                                    message.encryptionInfo = $root.google.spanner.admin.database.v1.EncryptionInfo.fromObject(object.encryptionInfo, long + 1);
                                 }
                                 if (object.encryptionInformation) {
                                     if (!Array.isArray(object.encryptionInformation))
@@ -19480,7 +20191,7 @@
                                     for (var i = 0; i < object.encryptionInformation.length; ++i) {
                                         if (typeof object.encryptionInformation[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.Backup.encryptionInformation: object expected");
-                                        message.encryptionInformation[i] = $root.google.spanner.admin.database.v1.EncryptionInfo.fromObject(object.encryptionInformation[i]);
+                                        message.encryptionInformation[i] = $root.google.spanner.admin.database.v1.EncryptionInfo.fromObject(object.encryptionInformation[i], long + 1);
                                     }
                                 }
                                 switch (object.databaseDialect) {
@@ -19513,7 +20224,7 @@
                                 if (object.maxExpireTime != null) {
                                     if (typeof object.maxExpireTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Backup.maxExpireTime: object expected");
-                                    message.maxExpireTime = $root.google.protobuf.Timestamp.fromObject(object.maxExpireTime);
+                                    message.maxExpireTime = $root.google.protobuf.Timestamp.fromObject(object.maxExpireTime, long + 1);
                                 }
                                 if (object.backupSchedules) {
                                     if (!Array.isArray(object.backupSchedules))
@@ -19527,7 +20238,7 @@
                                 if (object.oldestVersionTime != null) {
                                     if (typeof object.oldestVersionTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Backup.oldestVersionTime: object expected");
-                                    message.oldestVersionTime = $root.google.protobuf.Timestamp.fromObject(object.oldestVersionTime);
+                                    message.oldestVersionTime = $root.google.protobuf.Timestamp.fromObject(object.oldestVersionTime, long + 1);
                                 }
                                 if (object.instancePartitions) {
                                     if (!Array.isArray(object.instancePartitions))
@@ -19536,7 +20247,7 @@
                                     for (var i = 0; i < object.instancePartitions.length; ++i) {
                                         if (typeof object.instancePartitions[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.Backup.instancePartitions: object expected");
-                                        message.instancePartitions[i] = $root.google.spanner.admin.database.v1.BackupInstancePartition.fromObject(object.instancePartitions[i]);
+                                        message.instancePartitions[i] = $root.google.spanner.admin.database.v1.BackupInstancePartition.fromObject(object.instancePartitions[i], long + 1);
                                     }
                                 }
                                 return message;
@@ -19723,7 +20434,7 @@
                             function CreateBackupRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -19818,9 +20529,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateBackupRequest.decode = function decode(reader, length, error) {
+                            CreateBackupRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CreateBackupRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -19836,15 +20551,15 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.backup = $root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32());
+                                            message.backup = $root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.decode(reader, reader.uint32());
+                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -19875,9 +20590,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateBackupRequest.verify = function verify(message) {
+                            CreateBackupRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -19885,12 +20604,12 @@
                                     if (!$util.isString(message.backupId))
                                         return "backupId: string expected";
                                 if (message.backup != null && message.hasOwnProperty("backup")) {
-                                    var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backup);
+                                    var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backup, long + 1);
                                     if (error)
                                         return "backup." + error;
                                 }
                                 if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                    var error = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.verify(message.encryptionConfig);
+                                    var error = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.verify(message.encryptionConfig, long + 1);
                                     if (error)
                                         return "encryptionConfig." + error;
                                 }
@@ -19905,9 +20624,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CreateBackupRequest} CreateBackupRequest
                              */
-                            CreateBackupRequest.fromObject = function fromObject(object) {
+                            CreateBackupRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CreateBackupRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CreateBackupRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -19916,12 +20639,12 @@
                                 if (object.backup != null) {
                                     if (typeof object.backup !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CreateBackupRequest.backup: object expected");
-                                    message.backup = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backup);
+                                    message.backup = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backup, long + 1);
                                 }
                                 if (object.encryptionConfig != null) {
                                     if (typeof object.encryptionConfig !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CreateBackupRequest.encryptionConfig: object expected");
-                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.fromObject(object.encryptionConfig);
+                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                                 }
                                 return message;
                             };
@@ -20008,7 +20731,7 @@
                             function CreateBackupMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -20103,9 +20826,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateBackupMetadata.decode = function decode(reader, length, error) {
+                            CreateBackupMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CreateBackupMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -20121,15 +20848,15 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -20160,9 +20887,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateBackupMetadata.verify = function verify(message) {
+                            CreateBackupMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -20170,12 +20901,12 @@
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
@@ -20190,9 +20921,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CreateBackupMetadata} CreateBackupMetadata
                              */
-                            CreateBackupMetadata.fromObject = function fromObject(object) {
+                            CreateBackupMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CreateBackupMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CreateBackupMetadata();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -20201,12 +20936,12 @@
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CreateBackupMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CreateBackupMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 return message;
                             };
@@ -20294,7 +21029,7 @@
                             function CopyBackupRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -20399,9 +21134,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CopyBackupRequest.decode = function decode(reader, length, error) {
+                            CopyBackupRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CopyBackupRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -20421,15 +21160,15 @@
                                             break;
                                         }
                                     case 4: {
-                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
-                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig.decode(reader, reader.uint32());
+                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -20460,9 +21199,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CopyBackupRequest.verify = function verify(message) {
+                            CopyBackupRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -20473,12 +21216,12 @@
                                     if (!$util.isString(message.sourceBackup))
                                         return "sourceBackup: string expected";
                                 if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime, long + 1);
                                     if (error)
                                         return "expireTime." + error;
                                 }
                                 if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                    var error = $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig.verify(message.encryptionConfig);
+                                    var error = $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig.verify(message.encryptionConfig, long + 1);
                                     if (error)
                                         return "encryptionConfig." + error;
                                 }
@@ -20493,9 +21236,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CopyBackupRequest} CopyBackupRequest
                              */
-                            CopyBackupRequest.fromObject = function fromObject(object) {
+                            CopyBackupRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CopyBackupRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CopyBackupRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -20506,12 +21253,12 @@
                                 if (object.expireTime != null) {
                                     if (typeof object.expireTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CopyBackupRequest.expireTime: object expected");
-                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime, long + 1);
                                 }
                                 if (object.encryptionConfig != null) {
                                     if (typeof object.encryptionConfig !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CopyBackupRequest.encryptionConfig: object expected");
-                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig.fromObject(object.encryptionConfig);
+                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                                 }
                                 return message;
                             };
@@ -20601,7 +21348,7 @@
                             function CopyBackupMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -20696,9 +21443,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CopyBackupMetadata.decode = function decode(reader, length, error) {
+                            CopyBackupMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CopyBackupMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -20714,15 +21465,15 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -20753,9 +21504,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CopyBackupMetadata.verify = function verify(message) {
+                            CopyBackupMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -20763,12 +21518,12 @@
                                     if (!$util.isString(message.sourceBackup))
                                         return "sourceBackup: string expected";
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
@@ -20783,9 +21538,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CopyBackupMetadata} CopyBackupMetadata
                              */
-                            CopyBackupMetadata.fromObject = function fromObject(object) {
+                            CopyBackupMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CopyBackupMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CopyBackupMetadata();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -20794,12 +21553,12 @@
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CopyBackupMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CopyBackupMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 return message;
                             };
@@ -20884,7 +21643,7 @@
                             function UpdateBackupRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -20959,9 +21718,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateBackupRequest.decode = function decode(reader, length, error) {
+                            UpdateBackupRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.UpdateBackupRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -20969,15 +21732,15 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.backup = $root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32());
+                                            message.backup = $root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -21008,16 +21771,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateBackupRequest.verify = function verify(message) {
+                            UpdateBackupRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.backup != null && message.hasOwnProperty("backup")) {
-                                    var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backup);
+                                    var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backup, long + 1);
                                     if (error)
                                         return "backup." + error;
                                 }
                                 if (message.updateMask != null && message.hasOwnProperty("updateMask")) {
-                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask);
+                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask, long + 1);
                                     if (error)
                                         return "updateMask." + error;
                                 }
@@ -21032,19 +21799,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.UpdateBackupRequest} UpdateBackupRequest
                              */
-                            UpdateBackupRequest.fromObject = function fromObject(object) {
+                            UpdateBackupRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.UpdateBackupRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.UpdateBackupRequest();
                                 if (object.backup != null) {
                                     if (typeof object.backup !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateBackupRequest.backup: object expected");
-                                    message.backup = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backup);
+                                    message.backup = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backup, long + 1);
                                 }
                                 if (object.updateMask != null) {
                                     if (typeof object.updateMask !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateBackupRequest.updateMask: object expected");
-                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask);
+                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask, long + 1);
                                 }
                                 return message;
                             };
@@ -21122,7 +21893,7 @@
                             function GetBackupRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -21187,9 +21958,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetBackupRequest.decode = function decode(reader, length, error) {
+                            GetBackupRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.GetBackupRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -21201,7 +21976,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -21232,9 +22007,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetBackupRequest.verify = function verify(message) {
+                            GetBackupRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -21249,9 +22028,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.GetBackupRequest} GetBackupRequest
                              */
-                            GetBackupRequest.fromObject = function fromObject(object) {
+                            GetBackupRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.GetBackupRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.GetBackupRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -21327,7 +22110,7 @@
                             function DeleteBackupRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -21392,9 +22175,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DeleteBackupRequest.decode = function decode(reader, length, error) {
+                            DeleteBackupRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.DeleteBackupRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -21406,7 +22193,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -21437,9 +22224,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DeleteBackupRequest.verify = function verify(message) {
+                            DeleteBackupRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -21454,9 +22245,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.DeleteBackupRequest} DeleteBackupRequest
                              */
-                            DeleteBackupRequest.fromObject = function fromObject(object) {
+                            DeleteBackupRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.DeleteBackupRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.DeleteBackupRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -21535,7 +22330,7 @@
                             function ListBackupsRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -21630,9 +22425,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListBackupsRequest.decode = function decode(reader, length, error) {
+                            ListBackupsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListBackupsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -21656,7 +22455,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -21687,9 +22486,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListBackupsRequest.verify = function verify(message) {
+                            ListBackupsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -21713,9 +22516,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListBackupsRequest} ListBackupsRequest
                              */
-                            ListBackupsRequest.fromObject = function fromObject(object) {
+                            ListBackupsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListBackupsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListBackupsRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -21809,7 +22616,7 @@
                                 this.backups = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -21885,9 +22692,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListBackupsResponse.decode = function decode(reader, length, error) {
+                            ListBackupsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListBackupsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -21897,7 +22708,7 @@
                                     case 1: {
                                             if (!(message.backups && message.backups.length))
                                                 message.backups = [];
-                                            message.backups.push($root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32()));
+                                            message.backups.push($root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -21905,7 +22716,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -21936,14 +22747,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListBackupsResponse.verify = function verify(message) {
+                            ListBackupsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.backups != null && message.hasOwnProperty("backups")) {
                                     if (!Array.isArray(message.backups))
                                         return "backups: array expected";
                                     for (var i = 0; i < message.backups.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backups[i]);
+                                        var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backups[i], long + 1);
                                         if (error)
                                             return "backups." + error;
                                     }
@@ -21962,9 +22777,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListBackupsResponse} ListBackupsResponse
                              */
-                            ListBackupsResponse.fromObject = function fromObject(object) {
+                            ListBackupsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListBackupsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListBackupsResponse();
                                 if (object.backups) {
                                     if (!Array.isArray(object.backups))
@@ -21973,7 +22792,7 @@
                                     for (var i = 0; i < object.backups.length; ++i) {
                                         if (typeof object.backups[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.ListBackupsResponse.backups: object expected");
-                                        message.backups[i] = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backups[i]);
+                                        message.backups[i] = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backups[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -22060,7 +22879,7 @@
                             function ListBackupOperationsRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -22155,9 +22974,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListBackupOperationsRequest.decode = function decode(reader, length, error) {
+                            ListBackupOperationsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListBackupOperationsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -22181,7 +23004,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -22212,9 +23035,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListBackupOperationsRequest.verify = function verify(message) {
+                            ListBackupOperationsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -22238,9 +23065,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListBackupOperationsRequest} ListBackupOperationsRequest
                              */
-                            ListBackupOperationsRequest.fromObject = function fromObject(object) {
+                            ListBackupOperationsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListBackupOperationsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListBackupOperationsRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -22334,7 +23165,7 @@
                                 this.operations = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -22410,9 +23241,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListBackupOperationsResponse.decode = function decode(reader, length, error) {
+                            ListBackupOperationsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListBackupOperationsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -22422,7 +23257,7 @@
                                     case 1: {
                                             if (!(message.operations && message.operations.length))
                                                 message.operations = [];
-                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -22430,7 +23265,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -22461,14 +23296,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListBackupOperationsResponse.verify = function verify(message) {
+                            ListBackupOperationsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.operations != null && message.hasOwnProperty("operations")) {
                                     if (!Array.isArray(message.operations))
                                         return "operations: array expected";
                                     for (var i = 0; i < message.operations.length; ++i) {
-                                        var error = $root.google.longrunning.Operation.verify(message.operations[i]);
+                                        var error = $root.google.longrunning.Operation.verify(message.operations[i], long + 1);
                                         if (error)
                                             return "operations." + error;
                                     }
@@ -22487,9 +23326,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListBackupOperationsResponse} ListBackupOperationsResponse
                              */
-                            ListBackupOperationsResponse.fromObject = function fromObject(object) {
+                            ListBackupOperationsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListBackupOperationsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListBackupOperationsResponse();
                                 if (object.operations) {
                                     if (!Array.isArray(object.operations))
@@ -22498,7 +23341,7 @@
                                     for (var i = 0; i < object.operations.length; ++i) {
                                         if (typeof object.operations[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.ListBackupOperationsResponse.operations: object expected");
-                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i]);
+                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -22585,7 +23428,7 @@
                             function BackupInfo(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -22680,9 +23523,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            BackupInfo.decode = function decode(reader, length, error) {
+                            BackupInfo.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.BackupInfo();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -22694,11 +23541,11 @@
                                             break;
                                         }
                                     case 4: {
-                                            message.versionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.versionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
@@ -22706,7 +23553,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -22737,19 +23584,23 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            BackupInfo.verify = function verify(message) {
+                            BackupInfo.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.backup != null && message.hasOwnProperty("backup"))
                                     if (!$util.isString(message.backup))
                                         return "backup: string expected";
                                 if (message.versionTime != null && message.hasOwnProperty("versionTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.versionTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.versionTime, long + 1);
                                     if (error)
                                         return "versionTime." + error;
                                 }
                                 if (message.createTime != null && message.hasOwnProperty("createTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime, long + 1);
                                     if (error)
                                         return "createTime." + error;
                                 }
@@ -22767,21 +23618,25 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.BackupInfo} BackupInfo
                              */
-                            BackupInfo.fromObject = function fromObject(object) {
+                            BackupInfo.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.BackupInfo)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.BackupInfo();
                                 if (object.backup != null)
                                     message.backup = String(object.backup);
                                 if (object.versionTime != null) {
                                     if (typeof object.versionTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupInfo.versionTime: object expected");
-                                    message.versionTime = $root.google.protobuf.Timestamp.fromObject(object.versionTime);
+                                    message.versionTime = $root.google.protobuf.Timestamp.fromObject(object.versionTime, long + 1);
                                 }
                                 if (object.createTime != null) {
                                     if (typeof object.createTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupInfo.createTime: object expected");
-                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime);
+                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime, long + 1);
                                 }
                                 if (object.sourceDatabase != null)
                                     message.sourceDatabase = String(object.sourceDatabase);
@@ -22870,7 +23725,7 @@
                                 this.kmsKeyNames = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -22956,9 +23811,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateBackupEncryptionConfig.decode = function decode(reader, length, error) {
+                            CreateBackupEncryptionConfig.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -22980,7 +23839,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -23011,9 +23870,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateBackupEncryptionConfig.verify = function verify(message) {
+                            CreateBackupEncryptionConfig.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.encryptionType != null && message.hasOwnProperty("encryptionType"))
                                     switch (message.encryptionType) {
                                     default:
@@ -23045,9 +23908,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CreateBackupEncryptionConfig} CreateBackupEncryptionConfig
                              */
-                            CreateBackupEncryptionConfig.fromObject = function fromObject(object) {
+                            CreateBackupEncryptionConfig.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig();
                                 switch (object.encryptionType) {
                                 default:
@@ -23186,7 +24053,7 @@
                                 this.kmsKeyNames = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -23272,9 +24139,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CopyBackupEncryptionConfig.decode = function decode(reader, length, error) {
+                            CopyBackupEncryptionConfig.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -23296,7 +24167,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -23327,9 +24198,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CopyBackupEncryptionConfig.verify = function verify(message) {
+                            CopyBackupEncryptionConfig.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.encryptionType != null && message.hasOwnProperty("encryptionType"))
                                     switch (message.encryptionType) {
                                     default:
@@ -23361,9 +24236,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CopyBackupEncryptionConfig} CopyBackupEncryptionConfig
                              */
-                            CopyBackupEncryptionConfig.fromObject = function fromObject(object) {
+                            CopyBackupEncryptionConfig.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CopyBackupEncryptionConfig();
                                 switch (object.encryptionType) {
                                 default:
@@ -23498,7 +24377,7 @@
                             function FullBackupSpec(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -23553,9 +24432,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            FullBackupSpec.decode = function decode(reader, length, error) {
+                            FullBackupSpec.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.FullBackupSpec();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -23563,7 +24446,7 @@
                                         break;
                                     switch (tag >>> 3) {
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -23594,9 +24477,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            FullBackupSpec.verify = function verify(message) {
+                            FullBackupSpec.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 return null;
                             };
     
@@ -23608,9 +24495,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.FullBackupSpec} FullBackupSpec
                              */
-                            FullBackupSpec.fromObject = function fromObject(object) {
+                            FullBackupSpec.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.FullBackupSpec)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 return new $root.google.spanner.admin.database.v1.FullBackupSpec();
                             };
     
@@ -23675,7 +24566,7 @@
                             function IncrementalBackupSpec(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -23730,9 +24621,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            IncrementalBackupSpec.decode = function decode(reader, length, error) {
+                            IncrementalBackupSpec.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.IncrementalBackupSpec();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -23740,7 +24635,7 @@
                                         break;
                                     switch (tag >>> 3) {
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -23771,9 +24666,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            IncrementalBackupSpec.verify = function verify(message) {
+                            IncrementalBackupSpec.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 return null;
                             };
     
@@ -23785,9 +24684,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.IncrementalBackupSpec} IncrementalBackupSpec
                              */
-                            IncrementalBackupSpec.fromObject = function fromObject(object) {
+                            IncrementalBackupSpec.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.IncrementalBackupSpec)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 return new $root.google.spanner.admin.database.v1.IncrementalBackupSpec();
                             };
     
@@ -23853,7 +24756,7 @@
                             function BackupInstancePartition(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -23918,9 +24821,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            BackupInstancePartition.decode = function decode(reader, length, error) {
+                            BackupInstancePartition.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.BackupInstancePartition();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -23932,7 +24839,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -23963,9 +24870,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            BackupInstancePartition.verify = function verify(message) {
+                            BackupInstancePartition.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instancePartition != null && message.hasOwnProperty("instancePartition"))
                                     if (!$util.isString(message.instancePartition))
                                         return "instancePartition: string expected";
@@ -23980,9 +24891,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.BackupInstancePartition} BackupInstancePartition
                              */
-                            BackupInstancePartition.fromObject = function fromObject(object) {
+                            BackupInstancePartition.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.BackupInstancePartition)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.BackupInstancePartition();
                                 if (object.instancePartition != null)
                                     message.instancePartition = String(object.instancePartition);
@@ -24060,7 +24975,7 @@
                             function OperationProgress(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -24145,9 +25060,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            OperationProgress.decode = function decode(reader, length, error) {
+                            OperationProgress.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.OperationProgress();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -24159,15 +25078,15 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -24198,19 +25117,23 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            OperationProgress.verify = function verify(message) {
+                            OperationProgress.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.progressPercent != null && message.hasOwnProperty("progressPercent"))
                                     if (!$util.isInteger(message.progressPercent))
                                         return "progressPercent: integer expected";
                                 if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                     if (error)
                                         return "startTime." + error;
                                 }
                                 if (message.endTime != null && message.hasOwnProperty("endTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime, long + 1);
                                     if (error)
                                         return "endTime." + error;
                                 }
@@ -24225,21 +25148,25 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.OperationProgress} OperationProgress
                              */
-                            OperationProgress.fromObject = function fromObject(object) {
+                            OperationProgress.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.OperationProgress)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.OperationProgress();
                                 if (object.progressPercent != null)
                                     message.progressPercent = object.progressPercent | 0;
                                 if (object.startTime != null) {
                                     if (typeof object.startTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.OperationProgress.startTime: object expected");
-                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                                 }
                                 if (object.endTime != null) {
                                     if (typeof object.endTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.OperationProgress.endTime: object expected");
-                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime, long + 1);
                                 }
                                 return message;
                             };
@@ -24322,7 +25249,7 @@
                                 this.kmsKeyNames = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -24398,9 +25325,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            EncryptionConfig.decode = function decode(reader, length, error) {
+                            EncryptionConfig.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.EncryptionConfig();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -24418,7 +25349,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -24449,9 +25380,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            EncryptionConfig.verify = function verify(message) {
+                            EncryptionConfig.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.kmsKeyName != null && message.hasOwnProperty("kmsKeyName"))
                                     if (!$util.isString(message.kmsKeyName))
                                         return "kmsKeyName: string expected";
@@ -24473,9 +25408,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.EncryptionConfig} EncryptionConfig
                              */
-                            EncryptionConfig.fromObject = function fromObject(object) {
+                            EncryptionConfig.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.EncryptionConfig)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.EncryptionConfig();
                                 if (object.kmsKeyName != null)
                                     message.kmsKeyName = String(object.kmsKeyName);
@@ -24567,7 +25506,7 @@
                             function EncryptionInfo(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -24652,9 +25591,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            EncryptionInfo.decode = function decode(reader, length, error) {
+                            EncryptionInfo.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.EncryptionInfo();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -24666,7 +25609,7 @@
                                             break;
                                         }
                                     case 4: {
-                                            message.encryptionStatus = $root.google.rpc.Status.decode(reader, reader.uint32());
+                                            message.encryptionStatus = $root.google.rpc.Status.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
@@ -24674,7 +25617,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -24705,9 +25648,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            EncryptionInfo.verify = function verify(message) {
+                            EncryptionInfo.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.encryptionType != null && message.hasOwnProperty("encryptionType"))
                                     switch (message.encryptionType) {
                                     default:
@@ -24718,7 +25665,7 @@
                                         break;
                                     }
                                 if (message.encryptionStatus != null && message.hasOwnProperty("encryptionStatus")) {
-                                    var error = $root.google.rpc.Status.verify(message.encryptionStatus);
+                                    var error = $root.google.rpc.Status.verify(message.encryptionStatus, long + 1);
                                     if (error)
                                         return "encryptionStatus." + error;
                                 }
@@ -24736,9 +25683,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.EncryptionInfo} EncryptionInfo
                              */
-                            EncryptionInfo.fromObject = function fromObject(object) {
+                            EncryptionInfo.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.EncryptionInfo)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.EncryptionInfo();
                                 switch (object.encryptionType) {
                                 default:
@@ -24763,7 +25714,7 @@
                                 if (object.encryptionStatus != null) {
                                     if (typeof object.encryptionStatus !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.EncryptionInfo.encryptionStatus: object expected");
-                                    message.encryptionStatus = $root.google.rpc.Status.fromObject(object.encryptionStatus);
+                                    message.encryptionStatus = $root.google.rpc.Status.fromObject(object.encryptionStatus, long + 1);
                                 }
                                 if (object.kmsKeyVersion != null)
                                     message.kmsKeyVersion = String(object.kmsKeyVersion);
@@ -24878,7 +25829,7 @@
                             function BackupScheduleSpec(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -24957,9 +25908,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            BackupScheduleSpec.decode = function decode(reader, length, error) {
+                            BackupScheduleSpec.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.BackupScheduleSpec();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -24967,11 +25922,11 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.cronSpec = $root.google.spanner.admin.database.v1.CrontabSpec.decode(reader, reader.uint32());
+                                            message.cronSpec = $root.google.spanner.admin.database.v1.CrontabSpec.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -25002,14 +25957,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            BackupScheduleSpec.verify = function verify(message) {
+                            BackupScheduleSpec.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.cronSpec != null && message.hasOwnProperty("cronSpec")) {
                                     properties.scheduleSpec = 1;
                                     {
-                                        var error = $root.google.spanner.admin.database.v1.CrontabSpec.verify(message.cronSpec);
+                                        var error = $root.google.spanner.admin.database.v1.CrontabSpec.verify(message.cronSpec, long + 1);
                                         if (error)
                                             return "cronSpec." + error;
                                     }
@@ -25025,14 +25984,18 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.BackupScheduleSpec} BackupScheduleSpec
                              */
-                            BackupScheduleSpec.fromObject = function fromObject(object) {
+                            BackupScheduleSpec.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.BackupScheduleSpec)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.BackupScheduleSpec();
                                 if (object.cronSpec != null) {
                                     if (typeof object.cronSpec !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupScheduleSpec.cronSpec: object expected");
-                                    message.cronSpec = $root.google.spanner.admin.database.v1.CrontabSpec.fromObject(object.cronSpec);
+                                    message.cronSpec = $root.google.spanner.admin.database.v1.CrontabSpec.fromObject(object.cronSpec, long + 1);
                                 }
                                 return message;
                             };
@@ -25113,7 +26076,7 @@
                             function BackupSchedule(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -25252,9 +26215,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            BackupSchedule.decode = function decode(reader, length, error) {
+                            BackupSchedule.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.BackupSchedule();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -25266,31 +26233,31 @@
                                             break;
                                         }
                                     case 6: {
-                                            message.spec = $root.google.spanner.admin.database.v1.BackupScheduleSpec.decode(reader, reader.uint32());
+                                            message.spec = $root.google.spanner.admin.database.v1.BackupScheduleSpec.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.retentionDuration = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                            message.retentionDuration = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.decode(reader, reader.uint32());
+                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 7: {
-                                            message.fullBackupSpec = $root.google.spanner.admin.database.v1.FullBackupSpec.decode(reader, reader.uint32());
+                                            message.fullBackupSpec = $root.google.spanner.admin.database.v1.FullBackupSpec.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 8: {
-                                            message.incrementalBackupSpec = $root.google.spanner.admin.database.v1.IncrementalBackupSpec.decode(reader, reader.uint32());
+                                            message.incrementalBackupSpec = $root.google.spanner.admin.database.v1.IncrementalBackupSpec.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 9: {
-                                            message.updateTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.updateTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -25321,32 +26288,36 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            BackupSchedule.verify = function verify(message) {
+                            BackupSchedule.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
                                 if (message.spec != null && message.hasOwnProperty("spec")) {
-                                    var error = $root.google.spanner.admin.database.v1.BackupScheduleSpec.verify(message.spec);
+                                    var error = $root.google.spanner.admin.database.v1.BackupScheduleSpec.verify(message.spec, long + 1);
                                     if (error)
                                         return "spec." + error;
                                 }
                                 if (message.retentionDuration != null && message.hasOwnProperty("retentionDuration")) {
-                                    var error = $root.google.protobuf.Duration.verify(message.retentionDuration);
+                                    var error = $root.google.protobuf.Duration.verify(message.retentionDuration, long + 1);
                                     if (error)
                                         return "retentionDuration." + error;
                                 }
                                 if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                    var error = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.verify(message.encryptionConfig);
+                                    var error = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.verify(message.encryptionConfig, long + 1);
                                     if (error)
                                         return "encryptionConfig." + error;
                                 }
                                 if (message.fullBackupSpec != null && message.hasOwnProperty("fullBackupSpec")) {
                                     properties.backupTypeSpec = 1;
                                     {
-                                        var error = $root.google.spanner.admin.database.v1.FullBackupSpec.verify(message.fullBackupSpec);
+                                        var error = $root.google.spanner.admin.database.v1.FullBackupSpec.verify(message.fullBackupSpec, long + 1);
                                         if (error)
                                             return "fullBackupSpec." + error;
                                     }
@@ -25356,13 +26327,13 @@
                                         return "backupTypeSpec: multiple values";
                                     properties.backupTypeSpec = 1;
                                     {
-                                        var error = $root.google.spanner.admin.database.v1.IncrementalBackupSpec.verify(message.incrementalBackupSpec);
+                                        var error = $root.google.spanner.admin.database.v1.IncrementalBackupSpec.verify(message.incrementalBackupSpec, long + 1);
                                         if (error)
                                             return "incrementalBackupSpec." + error;
                                     }
                                 }
                                 if (message.updateTime != null && message.hasOwnProperty("updateTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.updateTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.updateTime, long + 1);
                                     if (error)
                                         return "updateTime." + error;
                                 }
@@ -25377,41 +26348,45 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.BackupSchedule} BackupSchedule
                              */
-                            BackupSchedule.fromObject = function fromObject(object) {
+                            BackupSchedule.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.BackupSchedule)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.BackupSchedule();
                                 if (object.name != null)
                                     message.name = String(object.name);
                                 if (object.spec != null) {
                                     if (typeof object.spec !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupSchedule.spec: object expected");
-                                    message.spec = $root.google.spanner.admin.database.v1.BackupScheduleSpec.fromObject(object.spec);
+                                    message.spec = $root.google.spanner.admin.database.v1.BackupScheduleSpec.fromObject(object.spec, long + 1);
                                 }
                                 if (object.retentionDuration != null) {
                                     if (typeof object.retentionDuration !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupSchedule.retentionDuration: object expected");
-                                    message.retentionDuration = $root.google.protobuf.Duration.fromObject(object.retentionDuration);
+                                    message.retentionDuration = $root.google.protobuf.Duration.fromObject(object.retentionDuration, long + 1);
                                 }
                                 if (object.encryptionConfig != null) {
                                     if (typeof object.encryptionConfig !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupSchedule.encryptionConfig: object expected");
-                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.fromObject(object.encryptionConfig);
+                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.CreateBackupEncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                                 }
                                 if (object.fullBackupSpec != null) {
                                     if (typeof object.fullBackupSpec !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupSchedule.fullBackupSpec: object expected");
-                                    message.fullBackupSpec = $root.google.spanner.admin.database.v1.FullBackupSpec.fromObject(object.fullBackupSpec);
+                                    message.fullBackupSpec = $root.google.spanner.admin.database.v1.FullBackupSpec.fromObject(object.fullBackupSpec, long + 1);
                                 }
                                 if (object.incrementalBackupSpec != null) {
                                     if (typeof object.incrementalBackupSpec !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupSchedule.incrementalBackupSpec: object expected");
-                                    message.incrementalBackupSpec = $root.google.spanner.admin.database.v1.IncrementalBackupSpec.fromObject(object.incrementalBackupSpec);
+                                    message.incrementalBackupSpec = $root.google.spanner.admin.database.v1.IncrementalBackupSpec.fromObject(object.incrementalBackupSpec, long + 1);
                                 }
                                 if (object.updateTime != null) {
                                     if (typeof object.updateTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.BackupSchedule.updateTime: object expected");
-                                    message.updateTime = $root.google.protobuf.Timestamp.fromObject(object.updateTime);
+                                    message.updateTime = $root.google.protobuf.Timestamp.fromObject(object.updateTime, long + 1);
                                 }
                                 return message;
                             };
@@ -25510,7 +26485,7 @@
                             function CrontabSpec(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -25595,9 +26570,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CrontabSpec.decode = function decode(reader, length, error) {
+                            CrontabSpec.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CrontabSpec();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -25613,11 +26592,11 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.creationWindow = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                            message.creationWindow = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -25648,9 +26627,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CrontabSpec.verify = function verify(message) {
+                            CrontabSpec.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.text != null && message.hasOwnProperty("text"))
                                     if (!$util.isString(message.text))
                                         return "text: string expected";
@@ -25658,7 +26641,7 @@
                                     if (!$util.isString(message.timeZone))
                                         return "timeZone: string expected";
                                 if (message.creationWindow != null && message.hasOwnProperty("creationWindow")) {
-                                    var error = $root.google.protobuf.Duration.verify(message.creationWindow);
+                                    var error = $root.google.protobuf.Duration.verify(message.creationWindow, long + 1);
                                     if (error)
                                         return "creationWindow." + error;
                                 }
@@ -25673,9 +26656,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CrontabSpec} CrontabSpec
                              */
-                            CrontabSpec.fromObject = function fromObject(object) {
+                            CrontabSpec.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CrontabSpec)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CrontabSpec();
                                 if (object.text != null)
                                     message.text = String(object.text);
@@ -25684,7 +26671,7 @@
                                 if (object.creationWindow != null) {
                                     if (typeof object.creationWindow !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CrontabSpec.creationWindow: object expected");
-                                    message.creationWindow = $root.google.protobuf.Duration.fromObject(object.creationWindow);
+                                    message.creationWindow = $root.google.protobuf.Duration.fromObject(object.creationWindow, long + 1);
                                 }
                                 return message;
                             };
@@ -25767,7 +26754,7 @@
                             function CreateBackupScheduleRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -25852,9 +26839,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateBackupScheduleRequest.decode = function decode(reader, length, error) {
+                            CreateBackupScheduleRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CreateBackupScheduleRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -25870,11 +26861,11 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.decode(reader, reader.uint32());
+                                            message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -25905,9 +26896,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateBackupScheduleRequest.verify = function verify(message) {
+                            CreateBackupScheduleRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -25915,7 +26910,7 @@
                                     if (!$util.isString(message.backupScheduleId))
                                         return "backupScheduleId: string expected";
                                 if (message.backupSchedule != null && message.hasOwnProperty("backupSchedule")) {
-                                    var error = $root.google.spanner.admin.database.v1.BackupSchedule.verify(message.backupSchedule);
+                                    var error = $root.google.spanner.admin.database.v1.BackupSchedule.verify(message.backupSchedule, long + 1);
                                     if (error)
                                         return "backupSchedule." + error;
                                 }
@@ -25930,9 +26925,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CreateBackupScheduleRequest} CreateBackupScheduleRequest
                              */
-                            CreateBackupScheduleRequest.fromObject = function fromObject(object) {
+                            CreateBackupScheduleRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CreateBackupScheduleRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CreateBackupScheduleRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -25941,7 +26940,7 @@
                                 if (object.backupSchedule != null) {
                                     if (typeof object.backupSchedule !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CreateBackupScheduleRequest.backupSchedule: object expected");
-                                    message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.fromObject(object.backupSchedule);
+                                    message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.fromObject(object.backupSchedule, long + 1);
                                 }
                                 return message;
                             };
@@ -26022,7 +27021,7 @@
                             function GetBackupScheduleRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -26087,9 +27086,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetBackupScheduleRequest.decode = function decode(reader, length, error) {
+                            GetBackupScheduleRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.GetBackupScheduleRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -26101,7 +27104,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -26132,9 +27135,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetBackupScheduleRequest.verify = function verify(message) {
+                            GetBackupScheduleRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -26149,9 +27156,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.GetBackupScheduleRequest} GetBackupScheduleRequest
                              */
-                            GetBackupScheduleRequest.fromObject = function fromObject(object) {
+                            GetBackupScheduleRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.GetBackupScheduleRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.GetBackupScheduleRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -26227,7 +27238,7 @@
                             function DeleteBackupScheduleRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -26292,9 +27303,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DeleteBackupScheduleRequest.decode = function decode(reader, length, error) {
+                            DeleteBackupScheduleRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.DeleteBackupScheduleRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -26306,7 +27321,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -26337,9 +27352,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DeleteBackupScheduleRequest.verify = function verify(message) {
+                            DeleteBackupScheduleRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -26354,9 +27373,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.DeleteBackupScheduleRequest} DeleteBackupScheduleRequest
                              */
-                            DeleteBackupScheduleRequest.fromObject = function fromObject(object) {
+                            DeleteBackupScheduleRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.DeleteBackupScheduleRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.DeleteBackupScheduleRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -26434,7 +27457,7 @@
                             function ListBackupSchedulesRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -26519,9 +27542,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListBackupSchedulesRequest.decode = function decode(reader, length, error) {
+                            ListBackupSchedulesRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListBackupSchedulesRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -26541,7 +27568,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -26572,9 +27599,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListBackupSchedulesRequest.verify = function verify(message) {
+                            ListBackupSchedulesRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -26595,9 +27626,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListBackupSchedulesRequest} ListBackupSchedulesRequest
                              */
-                            ListBackupSchedulesRequest.fromObject = function fromObject(object) {
+                            ListBackupSchedulesRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListBackupSchedulesRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListBackupSchedulesRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -26686,7 +27721,7 @@
                                 this.backupSchedules = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -26762,9 +27797,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListBackupSchedulesResponse.decode = function decode(reader, length, error) {
+                            ListBackupSchedulesResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListBackupSchedulesResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -26774,7 +27813,7 @@
                                     case 1: {
                                             if (!(message.backupSchedules && message.backupSchedules.length))
                                                 message.backupSchedules = [];
-                                            message.backupSchedules.push($root.google.spanner.admin.database.v1.BackupSchedule.decode(reader, reader.uint32()));
+                                            message.backupSchedules.push($root.google.spanner.admin.database.v1.BackupSchedule.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -26782,7 +27821,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -26813,14 +27852,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListBackupSchedulesResponse.verify = function verify(message) {
+                            ListBackupSchedulesResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.backupSchedules != null && message.hasOwnProperty("backupSchedules")) {
                                     if (!Array.isArray(message.backupSchedules))
                                         return "backupSchedules: array expected";
                                     for (var i = 0; i < message.backupSchedules.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.BackupSchedule.verify(message.backupSchedules[i]);
+                                        var error = $root.google.spanner.admin.database.v1.BackupSchedule.verify(message.backupSchedules[i], long + 1);
                                         if (error)
                                             return "backupSchedules." + error;
                                     }
@@ -26839,9 +27882,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListBackupSchedulesResponse} ListBackupSchedulesResponse
                              */
-                            ListBackupSchedulesResponse.fromObject = function fromObject(object) {
+                            ListBackupSchedulesResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListBackupSchedulesResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListBackupSchedulesResponse();
                                 if (object.backupSchedules) {
                                     if (!Array.isArray(object.backupSchedules))
@@ -26850,7 +27897,7 @@
                                     for (var i = 0; i < object.backupSchedules.length; ++i) {
                                         if (typeof object.backupSchedules[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.ListBackupSchedulesResponse.backupSchedules: object expected");
-                                        message.backupSchedules[i] = $root.google.spanner.admin.database.v1.BackupSchedule.fromObject(object.backupSchedules[i]);
+                                        message.backupSchedules[i] = $root.google.spanner.admin.database.v1.BackupSchedule.fromObject(object.backupSchedules[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -26935,7 +27982,7 @@
                             function UpdateBackupScheduleRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -27010,9 +28057,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateBackupScheduleRequest.decode = function decode(reader, length, error) {
+                            UpdateBackupScheduleRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.UpdateBackupScheduleRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -27020,15 +28071,15 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.decode(reader, reader.uint32());
+                                            message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -27059,16 +28110,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateBackupScheduleRequest.verify = function verify(message) {
+                            UpdateBackupScheduleRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.backupSchedule != null && message.hasOwnProperty("backupSchedule")) {
-                                    var error = $root.google.spanner.admin.database.v1.BackupSchedule.verify(message.backupSchedule);
+                                    var error = $root.google.spanner.admin.database.v1.BackupSchedule.verify(message.backupSchedule, long + 1);
                                     if (error)
                                         return "backupSchedule." + error;
                                 }
                                 if (message.updateMask != null && message.hasOwnProperty("updateMask")) {
-                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask);
+                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask, long + 1);
                                     if (error)
                                         return "updateMask." + error;
                                 }
@@ -27083,19 +28138,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.UpdateBackupScheduleRequest} UpdateBackupScheduleRequest
                              */
-                            UpdateBackupScheduleRequest.fromObject = function fromObject(object) {
+                            UpdateBackupScheduleRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.UpdateBackupScheduleRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.UpdateBackupScheduleRequest();
                                 if (object.backupSchedule != null) {
                                     if (typeof object.backupSchedule !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateBackupScheduleRequest.backupSchedule: object expected");
-                                    message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.fromObject(object.backupSchedule);
+                                    message.backupSchedule = $root.google.spanner.admin.database.v1.BackupSchedule.fromObject(object.backupSchedule, long + 1);
                                 }
                                 if (object.updateMask != null) {
                                     if (typeof object.updateMask !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateBackupScheduleRequest.updateMask: object expected");
-                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask);
+                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask, long + 1);
                                 }
                                 return message;
                             };
@@ -28100,7 +29159,7 @@
                             function RestoreInfo(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -28189,9 +29248,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            RestoreInfo.decode = function decode(reader, length, error) {
+                            RestoreInfo.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.RestoreInfo();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -28203,11 +29266,11 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.decode(reader, reader.uint32());
+                                            message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -28238,9 +29301,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            RestoreInfo.verify = function verify(message) {
+                            RestoreInfo.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.sourceType != null && message.hasOwnProperty("sourceType"))
                                     switch (message.sourceType) {
@@ -28253,7 +29320,7 @@
                                 if (message.backupInfo != null && message.hasOwnProperty("backupInfo")) {
                                     properties.sourceInfo = 1;
                                     {
-                                        var error = $root.google.spanner.admin.database.v1.BackupInfo.verify(message.backupInfo);
+                                        var error = $root.google.spanner.admin.database.v1.BackupInfo.verify(message.backupInfo, long + 1);
                                         if (error)
                                             return "backupInfo." + error;
                                     }
@@ -28269,9 +29336,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.RestoreInfo} RestoreInfo
                              */
-                            RestoreInfo.fromObject = function fromObject(object) {
+                            RestoreInfo.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.RestoreInfo)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.RestoreInfo();
                                 switch (object.sourceType) {
                                 default:
@@ -28292,7 +29363,7 @@
                                 if (object.backupInfo != null) {
                                     if (typeof object.backupInfo !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.RestoreInfo.backupInfo: object expected");
-                                    message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.fromObject(object.backupInfo);
+                                    message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.fromObject(object.backupInfo, long + 1);
                                 }
                                 return message;
                             };
@@ -28383,7 +29454,7 @@
                                 this.encryptionInfo = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -28559,9 +29630,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            Database.decode = function decode(reader, length, error) {
+                            Database.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.Database();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -28577,21 +29652,21 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.restoreInfo = $root.google.spanner.admin.database.v1.RestoreInfo.decode(reader, reader.uint32());
+                                            message.restoreInfo = $root.google.spanner.admin.database.v1.RestoreInfo.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
-                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32());
+                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 8: {
                                             if (!(message.encryptionInfo && message.encryptionInfo.length))
                                                 message.encryptionInfo = [];
-                                            message.encryptionInfo.push($root.google.spanner.admin.database.v1.EncryptionInfo.decode(reader, reader.uint32()));
+                                            message.encryptionInfo.push($root.google.spanner.admin.database.v1.EncryptionInfo.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 6: {
@@ -28599,7 +29674,7 @@
                                             break;
                                         }
                                     case 7: {
-                                            message.earliestVersionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.earliestVersionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 9: {
@@ -28619,7 +29694,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -28650,9 +29725,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            Database.verify = function verify(message) {
+                            Database.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -28667,17 +29746,17 @@
                                         break;
                                     }
                                 if (message.createTime != null && message.hasOwnProperty("createTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime, long + 1);
                                     if (error)
                                         return "createTime." + error;
                                 }
                                 if (message.restoreInfo != null && message.hasOwnProperty("restoreInfo")) {
-                                    var error = $root.google.spanner.admin.database.v1.RestoreInfo.verify(message.restoreInfo);
+                                    var error = $root.google.spanner.admin.database.v1.RestoreInfo.verify(message.restoreInfo, long + 1);
                                     if (error)
                                         return "restoreInfo." + error;
                                 }
                                 if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                    var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig);
+                                    var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig, long + 1);
                                     if (error)
                                         return "encryptionConfig." + error;
                                 }
@@ -28685,7 +29764,7 @@
                                     if (!Array.isArray(message.encryptionInfo))
                                         return "encryptionInfo: array expected";
                                     for (var i = 0; i < message.encryptionInfo.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.EncryptionInfo.verify(message.encryptionInfo[i]);
+                                        var error = $root.google.spanner.admin.database.v1.EncryptionInfo.verify(message.encryptionInfo[i], long + 1);
                                         if (error)
                                             return "encryptionInfo." + error;
                                     }
@@ -28694,7 +29773,7 @@
                                     if (!$util.isString(message.versionRetentionPeriod))
                                         return "versionRetentionPeriod: string expected";
                                 if (message.earliestVersionTime != null && message.hasOwnProperty("earliestVersionTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.earliestVersionTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.earliestVersionTime, long + 1);
                                     if (error)
                                         return "earliestVersionTime." + error;
                                 }
@@ -28727,9 +29806,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.Database} Database
                              */
-                            Database.fromObject = function fromObject(object) {
+                            Database.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.Database)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.Database();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -28760,17 +29843,17 @@
                                 if (object.createTime != null) {
                                     if (typeof object.createTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Database.createTime: object expected");
-                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime);
+                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime, long + 1);
                                 }
                                 if (object.restoreInfo != null) {
                                     if (typeof object.restoreInfo !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Database.restoreInfo: object expected");
-                                    message.restoreInfo = $root.google.spanner.admin.database.v1.RestoreInfo.fromObject(object.restoreInfo);
+                                    message.restoreInfo = $root.google.spanner.admin.database.v1.RestoreInfo.fromObject(object.restoreInfo, long + 1);
                                 }
                                 if (object.encryptionConfig != null) {
                                     if (typeof object.encryptionConfig !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Database.encryptionConfig: object expected");
-                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig);
+                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                                 }
                                 if (object.encryptionInfo) {
                                     if (!Array.isArray(object.encryptionInfo))
@@ -28779,7 +29862,7 @@
                                     for (var i = 0; i < object.encryptionInfo.length; ++i) {
                                         if (typeof object.encryptionInfo[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.Database.encryptionInfo: object expected");
-                                        message.encryptionInfo[i] = $root.google.spanner.admin.database.v1.EncryptionInfo.fromObject(object.encryptionInfo[i]);
+                                        message.encryptionInfo[i] = $root.google.spanner.admin.database.v1.EncryptionInfo.fromObject(object.encryptionInfo[i], long + 1);
                                     }
                                 }
                                 if (object.versionRetentionPeriod != null)
@@ -28787,7 +29870,7 @@
                                 if (object.earliestVersionTime != null) {
                                     if (typeof object.earliestVersionTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.Database.earliestVersionTime: object expected");
-                                    message.earliestVersionTime = $root.google.protobuf.Timestamp.fromObject(object.earliestVersionTime);
+                                    message.earliestVersionTime = $root.google.protobuf.Timestamp.fromObject(object.earliestVersionTime, long + 1);
                                 }
                                 if (object.defaultLeader != null)
                                     message.defaultLeader = String(object.defaultLeader);
@@ -28945,7 +30028,7 @@
                             function ListDatabasesRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -29030,9 +30113,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListDatabasesRequest.decode = function decode(reader, length, error) {
+                            ListDatabasesRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListDatabasesRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -29052,7 +30139,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -29083,9 +30170,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListDatabasesRequest.verify = function verify(message) {
+                            ListDatabasesRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -29106,9 +30197,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListDatabasesRequest} ListDatabasesRequest
                              */
-                            ListDatabasesRequest.fromObject = function fromObject(object) {
+                            ListDatabasesRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListDatabasesRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListDatabasesRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -29197,7 +30292,7 @@
                                 this.databases = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -29273,9 +30368,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListDatabasesResponse.decode = function decode(reader, length, error) {
+                            ListDatabasesResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListDatabasesResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -29285,7 +30384,7 @@
                                     case 1: {
                                             if (!(message.databases && message.databases.length))
                                                 message.databases = [];
-                                            message.databases.push($root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32()));
+                                            message.databases.push($root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -29293,7 +30392,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -29324,14 +30423,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListDatabasesResponse.verify = function verify(message) {
+                            ListDatabasesResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.databases != null && message.hasOwnProperty("databases")) {
                                     if (!Array.isArray(message.databases))
                                         return "databases: array expected";
                                     for (var i = 0; i < message.databases.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.Database.verify(message.databases[i]);
+                                        var error = $root.google.spanner.admin.database.v1.Database.verify(message.databases[i], long + 1);
                                         if (error)
                                             return "databases." + error;
                                     }
@@ -29350,9 +30453,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListDatabasesResponse} ListDatabasesResponse
                              */
-                            ListDatabasesResponse.fromObject = function fromObject(object) {
+                            ListDatabasesResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListDatabasesResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListDatabasesResponse();
                                 if (object.databases) {
                                     if (!Array.isArray(object.databases))
@@ -29361,7 +30468,7 @@
                                     for (var i = 0; i < object.databases.length; ++i) {
                                         if (typeof object.databases[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.ListDatabasesResponse.databases: object expected");
-                                        message.databases[i] = $root.google.spanner.admin.database.v1.Database.fromObject(object.databases[i]);
+                                        message.databases[i] = $root.google.spanner.admin.database.v1.Database.fromObject(object.databases[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -29451,7 +30558,7 @@
                                 this.extraStatements = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -29567,9 +30674,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateDatabaseRequest.decode = function decode(reader, length, error) {
+                            CreateDatabaseRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CreateDatabaseRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -29591,7 +30702,7 @@
                                             break;
                                         }
                                     case 4: {
-                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32());
+                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
@@ -29603,7 +30714,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -29634,9 +30745,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateDatabaseRequest.verify = function verify(message) {
+                            CreateDatabaseRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -29651,7 +30766,7 @@
                                             return "extraStatements: string[] expected";
                                 }
                                 if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                    var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig);
+                                    var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig, long + 1);
                                     if (error)
                                         return "encryptionConfig." + error;
                                 }
@@ -29678,9 +30793,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CreateDatabaseRequest} CreateDatabaseRequest
                              */
-                            CreateDatabaseRequest.fromObject = function fromObject(object) {
+                            CreateDatabaseRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CreateDatabaseRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CreateDatabaseRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -29696,7 +30815,7 @@
                                 if (object.encryptionConfig != null) {
                                     if (typeof object.encryptionConfig !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.CreateDatabaseRequest.encryptionConfig: object expected");
-                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig);
+                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                                 }
                                 switch (object.databaseDialect) {
                                 default:
@@ -29821,7 +30940,7 @@
                             function CreateDatabaseMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -29886,9 +31005,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateDatabaseMetadata.decode = function decode(reader, length, error) {
+                            CreateDatabaseMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.CreateDatabaseMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -29900,7 +31023,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -29931,9 +31054,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateDatabaseMetadata.verify = function verify(message) {
+                            CreateDatabaseMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
@@ -29948,9 +31075,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.CreateDatabaseMetadata} CreateDatabaseMetadata
                              */
-                            CreateDatabaseMetadata.fromObject = function fromObject(object) {
+                            CreateDatabaseMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.CreateDatabaseMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.CreateDatabaseMetadata();
                                 if (object.database != null)
                                     message.database = String(object.database);
@@ -30026,7 +31157,7 @@
                             function GetDatabaseRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -30091,9 +31222,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetDatabaseRequest.decode = function decode(reader, length, error) {
+                            GetDatabaseRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.GetDatabaseRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -30105,7 +31240,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -30136,9 +31271,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetDatabaseRequest.verify = function verify(message) {
+                            GetDatabaseRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -30153,9 +31292,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.GetDatabaseRequest} GetDatabaseRequest
                              */
-                            GetDatabaseRequest.fromObject = function fromObject(object) {
+                            GetDatabaseRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.GetDatabaseRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.GetDatabaseRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -30232,7 +31375,7 @@
                             function UpdateDatabaseRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -30307,9 +31450,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateDatabaseRequest.decode = function decode(reader, length, error) {
+                            UpdateDatabaseRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.UpdateDatabaseRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -30317,15 +31464,15 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.database = $root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32());
+                                            message.database = $root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -30356,16 +31503,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateDatabaseRequest.verify = function verify(message) {
+                            UpdateDatabaseRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database")) {
-                                    var error = $root.google.spanner.admin.database.v1.Database.verify(message.database);
+                                    var error = $root.google.spanner.admin.database.v1.Database.verify(message.database, long + 1);
                                     if (error)
                                         return "database." + error;
                                 }
                                 if (message.updateMask != null && message.hasOwnProperty("updateMask")) {
-                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask);
+                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask, long + 1);
                                     if (error)
                                         return "updateMask." + error;
                                 }
@@ -30380,19 +31531,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.UpdateDatabaseRequest} UpdateDatabaseRequest
                              */
-                            UpdateDatabaseRequest.fromObject = function fromObject(object) {
+                            UpdateDatabaseRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.UpdateDatabaseRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.UpdateDatabaseRequest();
                                 if (object.database != null) {
                                     if (typeof object.database !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseRequest.database: object expected");
-                                    message.database = $root.google.spanner.admin.database.v1.Database.fromObject(object.database);
+                                    message.database = $root.google.spanner.admin.database.v1.Database.fromObject(object.database, long + 1);
                                 }
                                 if (object.updateMask != null) {
                                     if (typeof object.updateMask !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseRequest.updateMask: object expected");
-                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask);
+                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask, long + 1);
                                 }
                                 return message;
                             };
@@ -30472,7 +31627,7 @@
                             function UpdateDatabaseMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -30557,9 +31712,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateDatabaseMetadata.decode = function decode(reader, length, error) {
+                            UpdateDatabaseMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.UpdateDatabaseMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -30567,19 +31726,19 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.request = $root.google.spanner.admin.database.v1.UpdateDatabaseRequest.decode(reader, reader.uint32());
+                                            message.request = $root.google.spanner.admin.database.v1.UpdateDatabaseRequest.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -30610,21 +31769,25 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateDatabaseMetadata.verify = function verify(message) {
+                            UpdateDatabaseMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.request != null && message.hasOwnProperty("request")) {
-                                    var error = $root.google.spanner.admin.database.v1.UpdateDatabaseRequest.verify(message.request);
+                                    var error = $root.google.spanner.admin.database.v1.UpdateDatabaseRequest.verify(message.request, long + 1);
                                     if (error)
                                         return "request." + error;
                                 }
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
@@ -30639,24 +31802,28 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.UpdateDatabaseMetadata} UpdateDatabaseMetadata
                              */
-                            UpdateDatabaseMetadata.fromObject = function fromObject(object) {
+                            UpdateDatabaseMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.UpdateDatabaseMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.UpdateDatabaseMetadata();
                                 if (object.request != null) {
                                     if (typeof object.request !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseMetadata.request: object expected");
-                                    message.request = $root.google.spanner.admin.database.v1.UpdateDatabaseRequest.fromObject(object.request);
+                                    message.request = $root.google.spanner.admin.database.v1.UpdateDatabaseRequest.fromObject(object.request, long + 1);
                                 }
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 return message;
                             };
@@ -30742,7 +31909,7 @@
                                 this.statements = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -30848,9 +32015,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateDatabaseDdlRequest.decode = function decode(reader, length, error) {
+                            UpdateDatabaseDdlRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.UpdateDatabaseDdlRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -30880,7 +32051,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -30911,9 +32082,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateDatabaseDdlRequest.verify = function verify(message) {
+                            UpdateDatabaseDdlRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
@@ -30944,9 +32119,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.UpdateDatabaseDdlRequest} UpdateDatabaseDdlRequest
                              */
-                            UpdateDatabaseDdlRequest.fromObject = function fromObject(object) {
+                            UpdateDatabaseDdlRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.UpdateDatabaseDdlRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.UpdateDatabaseDdlRequest();
                                 if (object.database != null)
                                     message.database = String(object.database);
@@ -31064,7 +32243,7 @@
                                 this.entityNames = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -31150,9 +32329,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DdlStatementActionInfo.decode = function decode(reader, length, error) {
+                            DdlStatementActionInfo.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.DdlStatementActionInfo();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -31174,7 +32357,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -31205,9 +32388,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DdlStatementActionInfo.verify = function verify(message) {
+                            DdlStatementActionInfo.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.action != null && message.hasOwnProperty("action"))
                                     if (!$util.isString(message.action))
                                         return "action: string expected";
@@ -31232,9 +32419,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.DdlStatementActionInfo} DdlStatementActionInfo
                              */
-                            DdlStatementActionInfo.fromObject = function fromObject(object) {
+                            DdlStatementActionInfo.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.DdlStatementActionInfo)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.DdlStatementActionInfo();
                                 if (object.action != null)
                                     message.action = String(object.action);
@@ -31339,7 +32530,7 @@
                                 this.actions = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -31458,9 +32649,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateDatabaseDdlMetadata.decode = function decode(reader, length, error) {
+                            UpdateDatabaseDdlMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -31480,7 +32675,7 @@
                                     case 3: {
                                             if (!(message.commitTimestamps && message.commitTimestamps.length))
                                                 message.commitTimestamps = [];
-                                            message.commitTimestamps.push($root.google.protobuf.Timestamp.decode(reader, reader.uint32()));
+                                            message.commitTimestamps.push($root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 4: {
@@ -31490,17 +32685,17 @@
                                     case 5: {
                                             if (!(message.progress && message.progress.length))
                                                 message.progress = [];
-                                            message.progress.push($root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32()));
+                                            message.progress.push($root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 6: {
                                             if (!(message.actions && message.actions.length))
                                                 message.actions = [];
-                                            message.actions.push($root.google.spanner.admin.database.v1.DdlStatementActionInfo.decode(reader, reader.uint32()));
+                                            message.actions.push($root.google.spanner.admin.database.v1.DdlStatementActionInfo.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -31531,9 +32726,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateDatabaseDdlMetadata.verify = function verify(message) {
+                            UpdateDatabaseDdlMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
@@ -31548,7 +32747,7 @@
                                     if (!Array.isArray(message.commitTimestamps))
                                         return "commitTimestamps: array expected";
                                     for (var i = 0; i < message.commitTimestamps.length; ++i) {
-                                        var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamps[i]);
+                                        var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamps[i], long + 1);
                                         if (error)
                                             return "commitTimestamps." + error;
                                     }
@@ -31560,7 +32759,7 @@
                                     if (!Array.isArray(message.progress))
                                         return "progress: array expected";
                                     for (var i = 0; i < message.progress.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress[i]);
+                                        var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress[i], long + 1);
                                         if (error)
                                             return "progress." + error;
                                     }
@@ -31569,7 +32768,7 @@
                                     if (!Array.isArray(message.actions))
                                         return "actions: array expected";
                                     for (var i = 0; i < message.actions.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.DdlStatementActionInfo.verify(message.actions[i]);
+                                        var error = $root.google.spanner.admin.database.v1.DdlStatementActionInfo.verify(message.actions[i], long + 1);
                                         if (error)
                                             return "actions." + error;
                                     }
@@ -31585,9 +32784,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata} UpdateDatabaseDdlMetadata
                              */
-                            UpdateDatabaseDdlMetadata.fromObject = function fromObject(object) {
+                            UpdateDatabaseDdlMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata();
                                 if (object.database != null)
                                     message.database = String(object.database);
@@ -31605,7 +32808,7 @@
                                     for (var i = 0; i < object.commitTimestamps.length; ++i) {
                                         if (typeof object.commitTimestamps[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata.commitTimestamps: object expected");
-                                        message.commitTimestamps[i] = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamps[i]);
+                                        message.commitTimestamps[i] = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamps[i], long + 1);
                                     }
                                 }
                                 if (object.throttled != null)
@@ -31617,7 +32820,7 @@
                                     for (var i = 0; i < object.progress.length; ++i) {
                                         if (typeof object.progress[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata.progress: object expected");
-                                        message.progress[i] = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress[i]);
+                                        message.progress[i] = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress[i], long + 1);
                                     }
                                 }
                                 if (object.actions) {
@@ -31627,7 +32830,7 @@
                                     for (var i = 0; i < object.actions.length; ++i) {
                                         if (typeof object.actions[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata.actions: object expected");
-                                        message.actions[i] = $root.google.spanner.admin.database.v1.DdlStatementActionInfo.fromObject(object.actions[i]);
+                                        message.actions[i] = $root.google.spanner.admin.database.v1.DdlStatementActionInfo.fromObject(object.actions[i], long + 1);
                                     }
                                 }
                                 return message;
@@ -31732,7 +32935,7 @@
                             function DropDatabaseRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -31797,9 +33000,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DropDatabaseRequest.decode = function decode(reader, length, error) {
+                            DropDatabaseRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.DropDatabaseRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -31811,7 +33018,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -31842,9 +33049,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DropDatabaseRequest.verify = function verify(message) {
+                            DropDatabaseRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
@@ -31859,9 +33070,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.DropDatabaseRequest} DropDatabaseRequest
                              */
-                            DropDatabaseRequest.fromObject = function fromObject(object) {
+                            DropDatabaseRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.DropDatabaseRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.DropDatabaseRequest();
                                 if (object.database != null)
                                     message.database = String(object.database);
@@ -31937,7 +33152,7 @@
                             function GetDatabaseDdlRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -32002,9 +33217,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetDatabaseDdlRequest.decode = function decode(reader, length, error) {
+                            GetDatabaseDdlRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.GetDatabaseDdlRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -32016,7 +33235,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -32047,9 +33266,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetDatabaseDdlRequest.verify = function verify(message) {
+                            GetDatabaseDdlRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
@@ -32064,9 +33287,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.GetDatabaseDdlRequest} GetDatabaseDdlRequest
                              */
-                            GetDatabaseDdlRequest.fromObject = function fromObject(object) {
+                            GetDatabaseDdlRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.GetDatabaseDdlRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.GetDatabaseDdlRequest();
                                 if (object.database != null)
                                     message.database = String(object.database);
@@ -32144,7 +33371,7 @@
                                 this.statements = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -32220,9 +33447,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetDatabaseDdlResponse.decode = function decode(reader, length, error) {
+                            GetDatabaseDdlResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.GetDatabaseDdlResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -32240,7 +33471,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -32271,9 +33502,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetDatabaseDdlResponse.verify = function verify(message) {
+                            GetDatabaseDdlResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.statements != null && message.hasOwnProperty("statements")) {
                                     if (!Array.isArray(message.statements))
                                         return "statements: array expected";
@@ -32295,9 +33530,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.GetDatabaseDdlResponse} GetDatabaseDdlResponse
                              */
-                            GetDatabaseDdlResponse.fromObject = function fromObject(object) {
+                            GetDatabaseDdlResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.GetDatabaseDdlResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.GetDatabaseDdlResponse();
                                 if (object.statements) {
                                     if (!Array.isArray(object.statements))
@@ -32399,7 +33638,7 @@
                             function ListDatabaseOperationsRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -32494,9 +33733,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListDatabaseOperationsRequest.decode = function decode(reader, length, error) {
+                            ListDatabaseOperationsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListDatabaseOperationsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -32520,7 +33763,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -32551,9 +33794,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListDatabaseOperationsRequest.verify = function verify(message) {
+                            ListDatabaseOperationsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -32577,9 +33824,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListDatabaseOperationsRequest} ListDatabaseOperationsRequest
                              */
-                            ListDatabaseOperationsRequest.fromObject = function fromObject(object) {
+                            ListDatabaseOperationsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListDatabaseOperationsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListDatabaseOperationsRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -32673,7 +33924,7 @@
                                 this.operations = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -32749,9 +34000,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListDatabaseOperationsResponse.decode = function decode(reader, length, error) {
+                            ListDatabaseOperationsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListDatabaseOperationsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -32761,7 +34016,7 @@
                                     case 1: {
                                             if (!(message.operations && message.operations.length))
                                                 message.operations = [];
-                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -32769,7 +34024,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -32800,14 +34055,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListDatabaseOperationsResponse.verify = function verify(message) {
+                            ListDatabaseOperationsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.operations != null && message.hasOwnProperty("operations")) {
                                     if (!Array.isArray(message.operations))
                                         return "operations: array expected";
                                     for (var i = 0; i < message.operations.length; ++i) {
-                                        var error = $root.google.longrunning.Operation.verify(message.operations[i]);
+                                        var error = $root.google.longrunning.Operation.verify(message.operations[i], long + 1);
                                         if (error)
                                             return "operations." + error;
                                     }
@@ -32826,9 +34085,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListDatabaseOperationsResponse} ListDatabaseOperationsResponse
                              */
-                            ListDatabaseOperationsResponse.fromObject = function fromObject(object) {
+                            ListDatabaseOperationsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListDatabaseOperationsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListDatabaseOperationsResponse();
                                 if (object.operations) {
                                     if (!Array.isArray(object.operations))
@@ -32837,7 +34100,7 @@
                                     for (var i = 0; i < object.operations.length; ++i) {
                                         if (typeof object.operations[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.ListDatabaseOperationsResponse.operations: object expected");
-                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i]);
+                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -32924,7 +34187,7 @@
                             function RestoreDatabaseRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -33033,9 +34296,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            RestoreDatabaseRequest.decode = function decode(reader, length, error) {
+                            RestoreDatabaseRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.RestoreDatabaseRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -33055,11 +34322,11 @@
                                             break;
                                         }
                                     case 4: {
-                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.decode(reader, reader.uint32());
+                                            message.encryptionConfig = $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -33090,9 +34357,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            RestoreDatabaseRequest.verify = function verify(message) {
+                            RestoreDatabaseRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
@@ -33106,7 +34377,7 @@
                                         return "backup: string expected";
                                 }
                                 if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                    var error = $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.verify(message.encryptionConfig);
+                                    var error = $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.verify(message.encryptionConfig, long + 1);
                                     if (error)
                                         return "encryptionConfig." + error;
                                 }
@@ -33121,9 +34392,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.RestoreDatabaseRequest} RestoreDatabaseRequest
                              */
-                            RestoreDatabaseRequest.fromObject = function fromObject(object) {
+                            RestoreDatabaseRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.RestoreDatabaseRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.RestoreDatabaseRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -33134,7 +34409,7 @@
                                 if (object.encryptionConfig != null) {
                                     if (typeof object.encryptionConfig !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.RestoreDatabaseRequest.encryptionConfig: object expected");
-                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.fromObject(object.encryptionConfig);
+                                    message.encryptionConfig = $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                                 }
                                 return message;
                             };
@@ -33223,7 +34498,7 @@
                                 this.kmsKeyNames = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -33309,9 +34584,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            RestoreDatabaseEncryptionConfig.decode = function decode(reader, length, error) {
+                            RestoreDatabaseEncryptionConfig.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -33333,7 +34612,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -33364,9 +34643,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            RestoreDatabaseEncryptionConfig.verify = function verify(message) {
+                            RestoreDatabaseEncryptionConfig.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.encryptionType != null && message.hasOwnProperty("encryptionType"))
                                     switch (message.encryptionType) {
                                     default:
@@ -33398,9 +34681,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig} RestoreDatabaseEncryptionConfig
                              */
-                            RestoreDatabaseEncryptionConfig.fromObject = function fromObject(object) {
+                            RestoreDatabaseEncryptionConfig.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.RestoreDatabaseEncryptionConfig();
                                 switch (object.encryptionType) {
                                 default:
@@ -33541,7 +34828,7 @@
                             function RestoreDatabaseMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -33670,9 +34957,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            RestoreDatabaseMetadata.decode = function decode(reader, length, error) {
+                            RestoreDatabaseMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.RestoreDatabaseMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -33688,15 +34979,15 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.decode(reader, reader.uint32());
+                                            message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 6: {
@@ -33704,7 +34995,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -33735,9 +35026,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            RestoreDatabaseMetadata.verify = function verify(message) {
+                            RestoreDatabaseMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
@@ -33753,18 +35048,18 @@
                                 if (message.backupInfo != null && message.hasOwnProperty("backupInfo")) {
                                     properties.sourceInfo = 1;
                                     {
-                                        var error = $root.google.spanner.admin.database.v1.BackupInfo.verify(message.backupInfo);
+                                        var error = $root.google.spanner.admin.database.v1.BackupInfo.verify(message.backupInfo, long + 1);
                                         if (error)
                                             return "backupInfo." + error;
                                     }
                                 }
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
@@ -33782,9 +35077,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.RestoreDatabaseMetadata} RestoreDatabaseMetadata
                              */
-                            RestoreDatabaseMetadata.fromObject = function fromObject(object) {
+                            RestoreDatabaseMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.RestoreDatabaseMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.RestoreDatabaseMetadata();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -33807,17 +35106,17 @@
                                 if (object.backupInfo != null) {
                                     if (typeof object.backupInfo !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.RestoreDatabaseMetadata.backupInfo: object expected");
-                                    message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.fromObject(object.backupInfo);
+                                    message.backupInfo = $root.google.spanner.admin.database.v1.BackupInfo.fromObject(object.backupInfo, long + 1);
                                 }
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.RestoreDatabaseMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.RestoreDatabaseMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 if (object.optimizeDatabaseOperationName != null)
                                     message.optimizeDatabaseOperationName = String(object.optimizeDatabaseOperationName);
@@ -33912,7 +35211,7 @@
                             function OptimizeRestoredDatabaseMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -33987,9 +35286,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            OptimizeRestoredDatabaseMetadata.decode = function decode(reader, length, error) {
+                            OptimizeRestoredDatabaseMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -34001,11 +35304,11 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.database.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -34036,14 +35339,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            OptimizeRestoredDatabaseMetadata.verify = function verify(message) {
+                            OptimizeRestoredDatabaseMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.database.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
@@ -34058,16 +35365,20 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata} OptimizeRestoredDatabaseMetadata
                              */
-                            OptimizeRestoredDatabaseMetadata.fromObject = function fromObject(object) {
+                            OptimizeRestoredDatabaseMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata();
                                 if (object.name != null)
                                     message.name = String(object.name);
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.OptimizeRestoredDatabaseMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.database.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 return message;
                             };
@@ -34159,7 +35470,7 @@
                             function DatabaseRole(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -34224,9 +35535,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DatabaseRole.decode = function decode(reader, length, error) {
+                            DatabaseRole.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.DatabaseRole();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -34238,7 +35553,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -34269,9 +35584,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DatabaseRole.verify = function verify(message) {
+                            DatabaseRole.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -34286,9 +35605,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.DatabaseRole} DatabaseRole
                              */
-                            DatabaseRole.fromObject = function fromObject(object) {
+                            DatabaseRole.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.DatabaseRole)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.DatabaseRole();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -34366,7 +35689,7 @@
                             function ListDatabaseRolesRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -34451,9 +35774,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListDatabaseRolesRequest.decode = function decode(reader, length, error) {
+                            ListDatabaseRolesRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListDatabaseRolesRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -34473,7 +35800,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -34504,9 +35831,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListDatabaseRolesRequest.verify = function verify(message) {
+                            ListDatabaseRolesRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -34527,9 +35858,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListDatabaseRolesRequest} ListDatabaseRolesRequest
                              */
-                            ListDatabaseRolesRequest.fromObject = function fromObject(object) {
+                            ListDatabaseRolesRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListDatabaseRolesRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListDatabaseRolesRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -34618,7 +35953,7 @@
                                 this.databaseRoles = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -34694,9 +36029,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListDatabaseRolesResponse.decode = function decode(reader, length, error) {
+                            ListDatabaseRolesResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.ListDatabaseRolesResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -34706,7 +36045,7 @@
                                     case 1: {
                                             if (!(message.databaseRoles && message.databaseRoles.length))
                                                 message.databaseRoles = [];
-                                            message.databaseRoles.push($root.google.spanner.admin.database.v1.DatabaseRole.decode(reader, reader.uint32()));
+                                            message.databaseRoles.push($root.google.spanner.admin.database.v1.DatabaseRole.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -34714,7 +36053,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -34745,14 +36084,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListDatabaseRolesResponse.verify = function verify(message) {
+                            ListDatabaseRolesResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.databaseRoles != null && message.hasOwnProperty("databaseRoles")) {
                                     if (!Array.isArray(message.databaseRoles))
                                         return "databaseRoles: array expected";
                                     for (var i = 0; i < message.databaseRoles.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.DatabaseRole.verify(message.databaseRoles[i]);
+                                        var error = $root.google.spanner.admin.database.v1.DatabaseRole.verify(message.databaseRoles[i], long + 1);
                                         if (error)
                                             return "databaseRoles." + error;
                                     }
@@ -34771,9 +36114,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.ListDatabaseRolesResponse} ListDatabaseRolesResponse
                              */
-                            ListDatabaseRolesResponse.fromObject = function fromObject(object) {
+                            ListDatabaseRolesResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.ListDatabaseRolesResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.ListDatabaseRolesResponse();
                                 if (object.databaseRoles) {
                                     if (!Array.isArray(object.databaseRoles))
@@ -34782,7 +36129,7 @@
                                     for (var i = 0; i < object.databaseRoles.length; ++i) {
                                         if (typeof object.databaseRoles[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.ListDatabaseRolesResponse.databaseRoles: object expected");
-                                        message.databaseRoles[i] = $root.google.spanner.admin.database.v1.DatabaseRole.fromObject(object.databaseRoles[i]);
+                                        message.databaseRoles[i] = $root.google.spanner.admin.database.v1.DatabaseRole.fromObject(object.databaseRoles[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -34869,7 +36216,7 @@
                                 this.splitPoints = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -34955,9 +36302,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            AddSplitPointsRequest.decode = function decode(reader, length, error) {
+                            AddSplitPointsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.AddSplitPointsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -34971,7 +36322,7 @@
                                     case 2: {
                                             if (!(message.splitPoints && message.splitPoints.length))
                                                 message.splitPoints = [];
-                                            message.splitPoints.push($root.google.spanner.admin.database.v1.SplitPoints.decode(reader, reader.uint32()));
+                                            message.splitPoints.push($root.google.spanner.admin.database.v1.SplitPoints.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 3: {
@@ -34979,7 +36330,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -35010,9 +36361,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            AddSplitPointsRequest.verify = function verify(message) {
+                            AddSplitPointsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
@@ -35020,7 +36375,7 @@
                                     if (!Array.isArray(message.splitPoints))
                                         return "splitPoints: array expected";
                                     for (var i = 0; i < message.splitPoints.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.SplitPoints.verify(message.splitPoints[i]);
+                                        var error = $root.google.spanner.admin.database.v1.SplitPoints.verify(message.splitPoints[i], long + 1);
                                         if (error)
                                             return "splitPoints." + error;
                                     }
@@ -35039,9 +36394,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.AddSplitPointsRequest} AddSplitPointsRequest
                              */
-                            AddSplitPointsRequest.fromObject = function fromObject(object) {
+                            AddSplitPointsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.AddSplitPointsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.AddSplitPointsRequest();
                                 if (object.database != null)
                                     message.database = String(object.database);
@@ -35052,7 +36411,7 @@
                                     for (var i = 0; i < object.splitPoints.length; ++i) {
                                         if (typeof object.splitPoints[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.AddSplitPointsRequest.splitPoints: object expected");
-                                        message.splitPoints[i] = $root.google.spanner.admin.database.v1.SplitPoints.fromObject(object.splitPoints[i]);
+                                        message.splitPoints[i] = $root.google.spanner.admin.database.v1.SplitPoints.fromObject(object.splitPoints[i], long + 1);
                                     }
                                 }
                                 if (object.initiator != null)
@@ -35139,7 +36498,7 @@
                             function AddSplitPointsResponse(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -35194,9 +36553,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            AddSplitPointsResponse.decode = function decode(reader, length, error) {
+                            AddSplitPointsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.AddSplitPointsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -35204,7 +36567,7 @@
                                         break;
                                     switch (tag >>> 3) {
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -35235,9 +36598,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            AddSplitPointsResponse.verify = function verify(message) {
+                            AddSplitPointsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 return null;
                             };
     
@@ -35249,9 +36616,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.AddSplitPointsResponse} AddSplitPointsResponse
                              */
-                            AddSplitPointsResponse.fromObject = function fromObject(object) {
+                            AddSplitPointsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.AddSplitPointsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 return new $root.google.spanner.admin.database.v1.AddSplitPointsResponse();
                             };
     
@@ -35321,7 +36692,7 @@
                                 this.keys = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -35417,9 +36788,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            SplitPoints.decode = function decode(reader, length, error) {
+                            SplitPoints.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.SplitPoints();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -35437,15 +36812,15 @@
                                     case 3: {
                                             if (!(message.keys && message.keys.length))
                                                 message.keys = [];
-                                            message.keys.push($root.google.spanner.admin.database.v1.SplitPoints.Key.decode(reader, reader.uint32()));
+                                            message.keys.push($root.google.spanner.admin.database.v1.SplitPoints.Key.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 5: {
-                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -35476,9 +36851,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            SplitPoints.verify = function verify(message) {
+                            SplitPoints.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.table != null && message.hasOwnProperty("table"))
                                     if (!$util.isString(message.table))
                                         return "table: string expected";
@@ -35489,13 +36868,13 @@
                                     if (!Array.isArray(message.keys))
                                         return "keys: array expected";
                                     for (var i = 0; i < message.keys.length; ++i) {
-                                        var error = $root.google.spanner.admin.database.v1.SplitPoints.Key.verify(message.keys[i]);
+                                        var error = $root.google.spanner.admin.database.v1.SplitPoints.Key.verify(message.keys[i], long + 1);
                                         if (error)
                                             return "keys." + error;
                                     }
                                 }
                                 if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime, long + 1);
                                     if (error)
                                         return "expireTime." + error;
                                 }
@@ -35510,9 +36889,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.SplitPoints} SplitPoints
                              */
-                            SplitPoints.fromObject = function fromObject(object) {
+                            SplitPoints.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.SplitPoints)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.SplitPoints();
                                 if (object.table != null)
                                     message.table = String(object.table);
@@ -35525,13 +36908,13 @@
                                     for (var i = 0; i < object.keys.length; ++i) {
                                         if (typeof object.keys[i] !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.SplitPoints.keys: object expected");
-                                        message.keys[i] = $root.google.spanner.admin.database.v1.SplitPoints.Key.fromObject(object.keys[i]);
+                                        message.keys[i] = $root.google.spanner.admin.database.v1.SplitPoints.Key.fromObject(object.keys[i], long + 1);
                                     }
                                 }
                                 if (object.expireTime != null) {
                                     if (typeof object.expireTime !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.SplitPoints.expireTime: object expected");
-                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime, long + 1);
                                 }
                                 return message;
                             };
@@ -35616,7 +36999,7 @@
                                 function Key(properties) {
                                     if (properties)
                                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                            if (properties[keys[i]] != null)
+                                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                                 this[keys[i]] = properties[keys[i]];
                                 }
     
@@ -35681,9 +37064,13 @@
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                Key.decode = function decode(reader, length, error) {
+                                Key.decode = function decode(reader, length, error, long) {
                                     if (!(reader instanceof $Reader))
                                         reader = $Reader.create(reader);
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $Reader.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.SplitPoints.Key();
                                     while (reader.pos < end) {
                                         var tag = reader.uint32();
@@ -35691,11 +37078,11 @@
                                             break;
                                         switch (tag >>> 3) {
                                         case 1: {
-                                                message.keyParts = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                                message.keyParts = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                                 break;
                                             }
                                         default:
-                                            reader.skipType(tag & 7);
+                                            reader.skipType(tag & 7, long);
                                             break;
                                         }
                                     }
@@ -35726,11 +37113,15 @@
                                  * @param {Object.<string,*>} message Plain object to verify
                                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                                  */
-                                Key.verify = function verify(message) {
+                                Key.verify = function verify(message, long) {
                                     if (typeof message !== "object" || message === null)
                                         return "object expected";
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        return "maximum nesting depth exceeded";
                                     if (message.keyParts != null && message.hasOwnProperty("keyParts")) {
-                                        var error = $root.google.protobuf.ListValue.verify(message.keyParts);
+                                        var error = $root.google.protobuf.ListValue.verify(message.keyParts, long + 1);
                                         if (error)
                                             return "keyParts." + error;
                                     }
@@ -35745,14 +37136,18 @@
                                  * @param {Object.<string,*>} object Plain object
                                  * @returns {google.spanner.admin.database.v1.SplitPoints.Key} Key
                                  */
-                                Key.fromObject = function fromObject(object) {
+                                Key.fromObject = function fromObject(object, long) {
                                     if (object instanceof $root.google.spanner.admin.database.v1.SplitPoints.Key)
                                         return object;
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var message = new $root.google.spanner.admin.database.v1.SplitPoints.Key();
                                     if (object.keyParts != null) {
                                         if (typeof object.keyParts !== "object")
                                             throw TypeError(".google.spanner.admin.database.v1.SplitPoints.Key.keyParts: object expected");
-                                        message.keyParts = $root.google.protobuf.ListValue.fromObject(object.keyParts);
+                                        message.keyParts = $root.google.protobuf.ListValue.fromObject(object.keyParts, long + 1);
                                     }
                                     return message;
                                 };
@@ -35833,7 +37228,7 @@
                             function InternalUpdateGraphOperationRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -35938,9 +37333,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            InternalUpdateGraphOperationRequest.decode = function decode(reader, length, error) {
+                            InternalUpdateGraphOperationRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.InternalUpdateGraphOperationRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -35964,11 +37363,11 @@
                                             break;
                                         }
                                     case 6: {
-                                            message.status = $root.google.rpc.Status.decode(reader, reader.uint32());
+                                            message.status = $root.google.rpc.Status.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -35999,9 +37398,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            InternalUpdateGraphOperationRequest.verify = function verify(message) {
+                            InternalUpdateGraphOperationRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.database != null && message.hasOwnProperty("database"))
                                     if (!$util.isString(message.database))
                                         return "database: string expected";
@@ -36015,7 +37418,7 @@
                                     if (typeof message.progress !== "number")
                                         return "progress: number expected";
                                 if (message.status != null && message.hasOwnProperty("status")) {
-                                    var error = $root.google.rpc.Status.verify(message.status);
+                                    var error = $root.google.rpc.Status.verify(message.status, long + 1);
                                     if (error)
                                         return "status." + error;
                                 }
@@ -36030,9 +37433,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.InternalUpdateGraphOperationRequest} InternalUpdateGraphOperationRequest
                              */
-                            InternalUpdateGraphOperationRequest.fromObject = function fromObject(object) {
+                            InternalUpdateGraphOperationRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.InternalUpdateGraphOperationRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.database.v1.InternalUpdateGraphOperationRequest();
                                 if (object.database != null)
                                     message.database = String(object.database);
@@ -36045,7 +37452,7 @@
                                 if (object.status != null) {
                                     if (typeof object.status !== "object")
                                         throw TypeError(".google.spanner.admin.database.v1.InternalUpdateGraphOperationRequest.status: object expected");
-                                    message.status = $root.google.rpc.Status.fromObject(object.status);
+                                    message.status = $root.google.rpc.Status.fromObject(object.status, long + 1);
                                 }
                                 return message;
                             };
@@ -36131,7 +37538,7 @@
                             function InternalUpdateGraphOperationResponse(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -36186,9 +37593,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            InternalUpdateGraphOperationResponse.decode = function decode(reader, length, error) {
+                            InternalUpdateGraphOperationResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.database.v1.InternalUpdateGraphOperationResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -36196,7 +37607,7 @@
                                         break;
                                     switch (tag >>> 3) {
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -36227,9 +37638,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            InternalUpdateGraphOperationResponse.verify = function verify(message) {
+                            InternalUpdateGraphOperationResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 return null;
                             };
     
@@ -36241,9 +37656,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.database.v1.InternalUpdateGraphOperationResponse} InternalUpdateGraphOperationResponse
                              */
-                            InternalUpdateGraphOperationResponse.fromObject = function fromObject(object) {
+                            InternalUpdateGraphOperationResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.database.v1.InternalUpdateGraphOperationResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 return new $root.google.spanner.admin.database.v1.InternalUpdateGraphOperationResponse();
                             };
     
@@ -36335,7 +37754,7 @@
                             function OperationProgress(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -36420,9 +37839,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            OperationProgress.decode = function decode(reader, length, error) {
+                            OperationProgress.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.OperationProgress();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -36434,15 +37857,15 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -36473,19 +37896,23 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            OperationProgress.verify = function verify(message) {
+                            OperationProgress.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.progressPercent != null && message.hasOwnProperty("progressPercent"))
                                     if (!$util.isInteger(message.progressPercent))
                                         return "progressPercent: integer expected";
                                 if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                     if (error)
                                         return "startTime." + error;
                                 }
                                 if (message.endTime != null && message.hasOwnProperty("endTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime, long + 1);
                                     if (error)
                                         return "endTime." + error;
                                 }
@@ -36500,21 +37927,25 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.OperationProgress} OperationProgress
                              */
-                            OperationProgress.fromObject = function fromObject(object) {
+                            OperationProgress.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.OperationProgress)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.OperationProgress();
                                 if (object.progressPercent != null)
                                     message.progressPercent = object.progressPercent | 0;
                                 if (object.startTime != null) {
                                     if (typeof object.startTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.OperationProgress.startTime: object expected");
-                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                                 }
                                 if (object.endTime != null) {
                                     if (typeof object.endTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.OperationProgress.endTime: object expected");
-                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime, long + 1);
                                 }
                                 return message;
                             };
@@ -36611,7 +38042,7 @@
                             function ReplicaSelection(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -36676,9 +38107,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ReplicaSelection.decode = function decode(reader, length, error) {
+                            ReplicaSelection.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ReplicaSelection();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -36690,7 +38125,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -36721,9 +38156,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ReplicaSelection.verify = function verify(message) {
+                            ReplicaSelection.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.location != null && message.hasOwnProperty("location"))
                                     if (!$util.isString(message.location))
                                         return "location: string expected";
@@ -36738,9 +38177,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ReplicaSelection} ReplicaSelection
                              */
-                            ReplicaSelection.fromObject = function fromObject(object) {
+                            ReplicaSelection.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ReplicaSelection)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ReplicaSelection();
                                 if (object.location != null)
                                     message.location = String(object.location);
@@ -37546,7 +38989,7 @@
                             function ReplicaInfo(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -37631,9 +39074,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ReplicaInfo.decode = function decode(reader, length, error) {
+                            ReplicaInfo.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ReplicaInfo();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -37653,7 +39100,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -37684,9 +39131,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ReplicaInfo.verify = function verify(message) {
+                            ReplicaInfo.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.location != null && message.hasOwnProperty("location"))
                                     if (!$util.isString(message.location))
                                         return "location: string expected";
@@ -37714,9 +39165,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ReplicaInfo} ReplicaInfo
                              */
-                            ReplicaInfo.fromObject = function fromObject(object) {
+                            ReplicaInfo.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ReplicaInfo)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ReplicaInfo();
                                 if (object.location != null)
                                     message.location = String(object.location);
@@ -37860,7 +39315,7 @@
                                 this.leaderOptions = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -38059,9 +39514,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            InstanceConfig.decode = function decode(reader, length, error) {
+                            InstanceConfig.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.InstanceConfig(), key, value;
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -38083,13 +39542,13 @@
                                     case 3: {
                                             if (!(message.replicas && message.replicas.length))
                                                 message.replicas = [];
-                                            message.replicas.push($root.google.spanner.admin.instance.v1.ReplicaInfo.decode(reader, reader.uint32()));
+                                            message.replicas.push($root.google.spanner.admin.instance.v1.ReplicaInfo.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 6: {
                                             if (!(message.optionalReplicas && message.optionalReplicas.length))
                                                 message.optionalReplicas = [];
-                                            message.optionalReplicas.push($root.google.spanner.admin.instance.v1.ReplicaInfo.decode(reader, reader.uint32()));
+                                            message.optionalReplicas.push($root.google.spanner.admin.instance.v1.ReplicaInfo.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 7: {
@@ -38112,10 +39571,12 @@
                                                     value = reader.string();
                                                     break;
                                                 default:
-                                                    reader.skipType(tag2 & 7);
+                                                    reader.skipType(tag2 & 7, long);
                                                     break;
                                                 }
                                             }
+                                            if (key === "__proto__")
+                                                $util.makeProp(message.labels, key);
                                             message.labels[key] = value;
                                             break;
                                         }
@@ -38150,7 +39611,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -38181,9 +39642,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            InstanceConfig.verify = function verify(message) {
+                            InstanceConfig.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -38203,7 +39668,7 @@
                                     if (!Array.isArray(message.replicas))
                                         return "replicas: array expected";
                                     for (var i = 0; i < message.replicas.length; ++i) {
-                                        var error = $root.google.spanner.admin.instance.v1.ReplicaInfo.verify(message.replicas[i]);
+                                        var error = $root.google.spanner.admin.instance.v1.ReplicaInfo.verify(message.replicas[i], long + 1);
                                         if (error)
                                             return "replicas." + error;
                                     }
@@ -38212,7 +39677,7 @@
                                     if (!Array.isArray(message.optionalReplicas))
                                         return "optionalReplicas: array expected";
                                     for (var i = 0; i < message.optionalReplicas.length; ++i) {
-                                        var error = $root.google.spanner.admin.instance.v1.ReplicaInfo.verify(message.optionalReplicas[i]);
+                                        var error = $root.google.spanner.admin.instance.v1.ReplicaInfo.verify(message.optionalReplicas[i], long + 1);
                                         if (error)
                                             return "optionalReplicas." + error;
                                     }
@@ -38285,9 +39750,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.InstanceConfig} InstanceConfig
                              */
-                            InstanceConfig.fromObject = function fromObject(object) {
+                            InstanceConfig.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.InstanceConfig)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.InstanceConfig();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -38320,7 +39789,7 @@
                                     for (var i = 0; i < object.replicas.length; ++i) {
                                         if (typeof object.replicas[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.InstanceConfig.replicas: object expected");
-                                        message.replicas[i] = $root.google.spanner.admin.instance.v1.ReplicaInfo.fromObject(object.replicas[i]);
+                                        message.replicas[i] = $root.google.spanner.admin.instance.v1.ReplicaInfo.fromObject(object.replicas[i], long + 1);
                                     }
                                 }
                                 if (object.optionalReplicas) {
@@ -38330,7 +39799,7 @@
                                     for (var i = 0; i < object.optionalReplicas.length; ++i) {
                                         if (typeof object.optionalReplicas[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.InstanceConfig.optionalReplicas: object expected");
-                                        message.optionalReplicas[i] = $root.google.spanner.admin.instance.v1.ReplicaInfo.fromObject(object.optionalReplicas[i]);
+                                        message.optionalReplicas[i] = $root.google.spanner.admin.instance.v1.ReplicaInfo.fromObject(object.optionalReplicas[i], long + 1);
                                     }
                                 }
                                 if (object.baseConfig != null)
@@ -38339,8 +39808,11 @@
                                     if (typeof object.labels !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.InstanceConfig.labels: object expected");
                                     message.labels = {};
-                                    for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i)
+                                    for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i) {
+                                        if (keys[i] === "__proto__")
+                                            $util.makeProp(message.labels, keys[i]);
                                         message.labels[keys[i]] = String(object.labels[keys[i]]);
+                                    }
                                 }
                                 if (object.etag != null)
                                     message.etag = String(object.etag);
@@ -38499,8 +39971,11 @@
                                 var keys2;
                                 if (message.labels && (keys2 = Object.keys(message.labels)).length) {
                                     object.labels = {};
-                                    for (var j = 0; j < keys2.length; ++j)
+                                    for (var j = 0; j < keys2.length; ++j) {
+                                        if (keys2[j] === "__proto__")
+                                            $util.makeProp(object.labels, keys2[j]);
                                         object.labels[keys2[j]] = message.labels[keys2[j]];
+                                    }
                                 }
                                 if (message.etag != null && message.hasOwnProperty("etag"))
                                     object.etag = message.etag;
@@ -38641,7 +40116,7 @@
                             function ReplicaComputeCapacity(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -38740,9 +40215,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ReplicaComputeCapacity.decode = function decode(reader, length, error) {
+                            ReplicaComputeCapacity.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ReplicaComputeCapacity();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -38750,7 +40229,7 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.decode(reader, reader.uint32());
+                                            message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
@@ -38762,7 +40241,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -38793,12 +40272,16 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ReplicaComputeCapacity.verify = function verify(message) {
+                            ReplicaComputeCapacity.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.replicaSelection != null && message.hasOwnProperty("replicaSelection")) {
-                                    var error = $root.google.spanner.admin.instance.v1.ReplicaSelection.verify(message.replicaSelection);
+                                    var error = $root.google.spanner.admin.instance.v1.ReplicaSelection.verify(message.replicaSelection, long + 1);
                                     if (error)
                                         return "replicaSelection." + error;
                                 }
@@ -38825,14 +40308,18 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ReplicaComputeCapacity} ReplicaComputeCapacity
                              */
-                            ReplicaComputeCapacity.fromObject = function fromObject(object) {
+                            ReplicaComputeCapacity.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ReplicaComputeCapacity)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ReplicaComputeCapacity();
                                 if (object.replicaSelection != null) {
                                     if (typeof object.replicaSelection !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.ReplicaComputeCapacity.replicaSelection: object expected");
-                                    message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.fromObject(object.replicaSelection);
+                                    message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.fromObject(object.replicaSelection, long + 1);
                                 }
                                 if (object.nodeCount != null)
                                     message.nodeCount = object.nodeCount | 0;
@@ -38923,7 +40410,7 @@
                                 this.asymmetricAutoscalingOptions = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -39009,9 +40496,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            AutoscalingConfig.decode = function decode(reader, length, error) {
+                            AutoscalingConfig.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -39019,21 +40510,21 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.decode(reader, reader.uint32());
+                                            message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.autoscalingTargets = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets.decode(reader, reader.uint32());
+                                            message.autoscalingTargets = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
                                             if (!(message.asymmetricAutoscalingOptions && message.asymmetricAutoscalingOptions.length))
                                                 message.asymmetricAutoscalingOptions = [];
-                                            message.asymmetricAutoscalingOptions.push($root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.decode(reader, reader.uint32()));
+                                            message.asymmetricAutoscalingOptions.push($root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -39064,16 +40555,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            AutoscalingConfig.verify = function verify(message) {
+                            AutoscalingConfig.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.autoscalingLimits != null && message.hasOwnProperty("autoscalingLimits")) {
-                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.verify(message.autoscalingLimits);
+                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.verify(message.autoscalingLimits, long + 1);
                                     if (error)
                                         return "autoscalingLimits." + error;
                                 }
                                 if (message.autoscalingTargets != null && message.hasOwnProperty("autoscalingTargets")) {
-                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets.verify(message.autoscalingTargets);
+                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets.verify(message.autoscalingTargets, long + 1);
                                     if (error)
                                         return "autoscalingTargets." + error;
                                 }
@@ -39081,7 +40576,7 @@
                                     if (!Array.isArray(message.asymmetricAutoscalingOptions))
                                         return "asymmetricAutoscalingOptions: array expected";
                                     for (var i = 0; i < message.asymmetricAutoscalingOptions.length; ++i) {
-                                        var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.verify(message.asymmetricAutoscalingOptions[i]);
+                                        var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.verify(message.asymmetricAutoscalingOptions[i], long + 1);
                                         if (error)
                                             return "asymmetricAutoscalingOptions." + error;
                                     }
@@ -39097,19 +40592,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.AutoscalingConfig} AutoscalingConfig
                              */
-                            AutoscalingConfig.fromObject = function fromObject(object) {
+                            AutoscalingConfig.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.AutoscalingConfig)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig();
                                 if (object.autoscalingLimits != null) {
                                     if (typeof object.autoscalingLimits !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.AutoscalingConfig.autoscalingLimits: object expected");
-                                    message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.fromObject(object.autoscalingLimits);
+                                    message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.fromObject(object.autoscalingLimits, long + 1);
                                 }
                                 if (object.autoscalingTargets != null) {
                                     if (typeof object.autoscalingTargets !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.AutoscalingConfig.autoscalingTargets: object expected");
-                                    message.autoscalingTargets = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets.fromObject(object.autoscalingTargets);
+                                    message.autoscalingTargets = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets.fromObject(object.autoscalingTargets, long + 1);
                                 }
                                 if (object.asymmetricAutoscalingOptions) {
                                     if (!Array.isArray(object.asymmetricAutoscalingOptions))
@@ -39118,7 +40617,7 @@
                                     for (var i = 0; i < object.asymmetricAutoscalingOptions.length; ++i) {
                                         if (typeof object.asymmetricAutoscalingOptions[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.AutoscalingConfig.asymmetricAutoscalingOptions: object expected");
-                                        message.asymmetricAutoscalingOptions[i] = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.fromObject(object.asymmetricAutoscalingOptions[i]);
+                                        message.asymmetricAutoscalingOptions[i] = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.fromObject(object.asymmetricAutoscalingOptions[i], long + 1);
                                     }
                                 }
                                 return message;
@@ -39204,7 +40703,7 @@
                                 function AutoscalingLimits(properties) {
                                     if (properties)
                                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                            if (properties[keys[i]] != null)
+                                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                                 this[keys[i]] = properties[keys[i]];
                                 }
     
@@ -39324,9 +40823,13 @@
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                AutoscalingLimits.decode = function decode(reader, length, error) {
+                                AutoscalingLimits.decode = function decode(reader, length, error, long) {
                                     if (!(reader instanceof $Reader))
                                         reader = $Reader.create(reader);
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $Reader.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits();
                                     while (reader.pos < end) {
                                         var tag = reader.uint32();
@@ -39350,7 +40853,7 @@
                                                 break;
                                             }
                                         default:
-                                            reader.skipType(tag & 7);
+                                            reader.skipType(tag & 7, long);
                                             break;
                                         }
                                     }
@@ -39381,9 +40884,13 @@
                                  * @param {Object.<string,*>} message Plain object to verify
                                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                                  */
-                                AutoscalingLimits.verify = function verify(message) {
+                                AutoscalingLimits.verify = function verify(message, long) {
                                     if (typeof message !== "object" || message === null)
                                         return "object expected";
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        return "maximum nesting depth exceeded";
                                     var properties = {};
                                     if (message.minNodes != null && message.hasOwnProperty("minNodes")) {
                                         properties.minLimit = 1;
@@ -39420,9 +40927,13 @@
                                  * @param {Object.<string,*>} object Plain object
                                  * @returns {google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits} AutoscalingLimits
                                  */
-                                AutoscalingLimits.fromObject = function fromObject(object) {
+                                AutoscalingLimits.fromObject = function fromObject(object, long) {
                                     if (object instanceof $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits)
                                         return object;
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits();
                                     if (object.minNodes != null)
                                         message.minNodes = object.minNodes | 0;
@@ -39522,7 +41033,7 @@
                                 function AutoscalingTargets(properties) {
                                     if (properties)
                                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                            if (properties[keys[i]] != null)
+                                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                                 this[keys[i]] = properties[keys[i]];
                                 }
     
@@ -39607,9 +41118,13 @@
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                AutoscalingTargets.decode = function decode(reader, length, error) {
+                                AutoscalingTargets.decode = function decode(reader, length, error, long) {
                                     if (!(reader instanceof $Reader))
                                         reader = $Reader.create(reader);
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $Reader.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets();
                                     while (reader.pos < end) {
                                         var tag = reader.uint32();
@@ -39629,7 +41144,7 @@
                                                 break;
                                             }
                                         default:
-                                            reader.skipType(tag & 7);
+                                            reader.skipType(tag & 7, long);
                                             break;
                                         }
                                     }
@@ -39660,9 +41175,13 @@
                                  * @param {Object.<string,*>} message Plain object to verify
                                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                                  */
-                                AutoscalingTargets.verify = function verify(message) {
+                                AutoscalingTargets.verify = function verify(message, long) {
                                     if (typeof message !== "object" || message === null)
                                         return "object expected";
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        return "maximum nesting depth exceeded";
                                     if (message.highPriorityCpuUtilizationPercent != null && message.hasOwnProperty("highPriorityCpuUtilizationPercent"))
                                         if (!$util.isInteger(message.highPriorityCpuUtilizationPercent))
                                             return "highPriorityCpuUtilizationPercent: integer expected";
@@ -39683,9 +41202,13 @@
                                  * @param {Object.<string,*>} object Plain object
                                  * @returns {google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets} AutoscalingTargets
                                  */
-                                AutoscalingTargets.fromObject = function fromObject(object) {
+                                AutoscalingTargets.fromObject = function fromObject(object, long) {
                                     if (object instanceof $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets)
                                         return object;
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets();
                                     if (object.highPriorityCpuUtilizationPercent != null)
                                         message.highPriorityCpuUtilizationPercent = object.highPriorityCpuUtilizationPercent | 0;
@@ -39773,7 +41296,7 @@
                                 function AsymmetricAutoscalingOption(properties) {
                                     if (properties)
                                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                            if (properties[keys[i]] != null)
+                                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                                 this[keys[i]] = properties[keys[i]];
                                 }
     
@@ -39848,9 +41371,13 @@
                                  * @throws {Error} If the payload is not a reader or valid buffer
                                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                  */
-                                AsymmetricAutoscalingOption.decode = function decode(reader, length, error) {
+                                AsymmetricAutoscalingOption.decode = function decode(reader, length, error, long) {
                                     if (!(reader instanceof $Reader))
                                         reader = $Reader.create(reader);
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $Reader.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption();
                                     while (reader.pos < end) {
                                         var tag = reader.uint32();
@@ -39858,15 +41385,15 @@
                                             break;
                                         switch (tag >>> 3) {
                                         case 1: {
-                                                message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.decode(reader, reader.uint32());
+                                                message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.decode(reader, reader.uint32(), undefined, long + 1);
                                                 break;
                                             }
                                         case 2: {
-                                                message.overrides = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides.decode(reader, reader.uint32());
+                                                message.overrides = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides.decode(reader, reader.uint32(), undefined, long + 1);
                                                 break;
                                             }
                                         default:
-                                            reader.skipType(tag & 7);
+                                            reader.skipType(tag & 7, long);
                                             break;
                                         }
                                     }
@@ -39897,16 +41424,20 @@
                                  * @param {Object.<string,*>} message Plain object to verify
                                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                                  */
-                                AsymmetricAutoscalingOption.verify = function verify(message) {
+                                AsymmetricAutoscalingOption.verify = function verify(message, long) {
                                     if (typeof message !== "object" || message === null)
                                         return "object expected";
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        return "maximum nesting depth exceeded";
                                     if (message.replicaSelection != null && message.hasOwnProperty("replicaSelection")) {
-                                        var error = $root.google.spanner.admin.instance.v1.ReplicaSelection.verify(message.replicaSelection);
+                                        var error = $root.google.spanner.admin.instance.v1.ReplicaSelection.verify(message.replicaSelection, long + 1);
                                         if (error)
                                             return "replicaSelection." + error;
                                     }
                                     if (message.overrides != null && message.hasOwnProperty("overrides")) {
-                                        var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides.verify(message.overrides);
+                                        var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides.verify(message.overrides, long + 1);
                                         if (error)
                                             return "overrides." + error;
                                     }
@@ -39921,19 +41452,23 @@
                                  * @param {Object.<string,*>} object Plain object
                                  * @returns {google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption} AsymmetricAutoscalingOption
                                  */
-                                AsymmetricAutoscalingOption.fromObject = function fromObject(object) {
+                                AsymmetricAutoscalingOption.fromObject = function fromObject(object, long) {
                                     if (object instanceof $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption)
                                         return object;
+                                    if (long === undefined)
+                                        long = 0;
+                                    if (long > $util.recursionLimit)
+                                        throw Error("maximum nesting depth exceeded");
                                     var message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption();
                                     if (object.replicaSelection != null) {
                                         if (typeof object.replicaSelection !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.replicaSelection: object expected");
-                                        message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.fromObject(object.replicaSelection);
+                                        message.replicaSelection = $root.google.spanner.admin.instance.v1.ReplicaSelection.fromObject(object.replicaSelection, long + 1);
                                     }
                                     if (object.overrides != null) {
                                         if (typeof object.overrides !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.overrides: object expected");
-                                        message.overrides = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides.fromObject(object.overrides);
+                                        message.overrides = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides.fromObject(object.overrides, long + 1);
                                     }
                                     return message;
                                 };
@@ -40012,7 +41547,7 @@
                                     function AutoscalingConfigOverrides(properties) {
                                         if (properties)
                                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                                if (properties[keys[i]] != null)
+                                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                                     this[keys[i]] = properties[keys[i]];
                                     }
     
@@ -40117,9 +41652,13 @@
                                      * @throws {Error} If the payload is not a reader or valid buffer
                                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                                      */
-                                    AutoscalingConfigOverrides.decode = function decode(reader, length, error) {
+                                    AutoscalingConfigOverrides.decode = function decode(reader, length, error, long) {
                                         if (!(reader instanceof $Reader))
                                             reader = $Reader.create(reader);
+                                        if (long === undefined)
+                                            long = 0;
+                                        if (long > $Reader.recursionLimit)
+                                            throw Error("maximum nesting depth exceeded");
                                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides();
                                         while (reader.pos < end) {
                                             var tag = reader.uint32();
@@ -40127,7 +41666,7 @@
                                                 break;
                                             switch (tag >>> 3) {
                                             case 1: {
-                                                    message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.decode(reader, reader.uint32());
+                                                    message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.decode(reader, reader.uint32(), undefined, long + 1);
                                                     break;
                                                 }
                                             case 2: {
@@ -40147,7 +41686,7 @@
                                                     break;
                                                 }
                                             default:
-                                                reader.skipType(tag & 7);
+                                                reader.skipType(tag & 7, long);
                                                 break;
                                             }
                                         }
@@ -40178,11 +41717,15 @@
                                      * @param {Object.<string,*>} message Plain object to verify
                                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                                      */
-                                    AutoscalingConfigOverrides.verify = function verify(message) {
+                                    AutoscalingConfigOverrides.verify = function verify(message, long) {
                                         if (typeof message !== "object" || message === null)
                                             return "object expected";
+                                        if (long === undefined)
+                                            long = 0;
+                                        if (long > $util.recursionLimit)
+                                            return "maximum nesting depth exceeded";
                                         if (message.autoscalingLimits != null && message.hasOwnProperty("autoscalingLimits")) {
-                                            var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.verify(message.autoscalingLimits);
+                                            var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.verify(message.autoscalingLimits, long + 1);
                                             if (error)
                                                 return "autoscalingLimits." + error;
                                         }
@@ -40209,14 +41752,18 @@
                                      * @param {Object.<string,*>} object Plain object
                                      * @returns {google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides} AutoscalingConfigOverrides
                                      */
-                                    AutoscalingConfigOverrides.fromObject = function fromObject(object) {
+                                    AutoscalingConfigOverrides.fromObject = function fromObject(object, long) {
                                         if (object instanceof $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides)
                                             return object;
+                                        if (long === undefined)
+                                            long = 0;
+                                        if (long > $util.recursionLimit)
+                                            throw Error("maximum nesting depth exceeded");
                                         var message = new $root.google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides();
                                         if (object.autoscalingLimits != null) {
                                             if (typeof object.autoscalingLimits !== "object")
                                                 throw TypeError(".google.spanner.admin.instance.v1.AutoscalingConfig.AsymmetricAutoscalingOption.AutoscalingConfigOverrides.autoscalingLimits: object expected");
-                                            message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.fromObject(object.autoscalingLimits);
+                                            message.autoscalingLimits = $root.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.fromObject(object.autoscalingLimits, long + 1);
                                         }
                                         if (object.autoscalingTargetHighPriorityCpuUtilizationPercent != null)
                                             message.autoscalingTargetHighPriorityCpuUtilizationPercent = object.autoscalingTargetHighPriorityCpuUtilizationPercent | 0;
@@ -40335,7 +41882,7 @@
                                 this.endpointUris = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -40553,9 +42100,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            Instance.decode = function decode(reader, length, error) {
+                            Instance.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.Instance(), key, value;
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -40585,11 +42136,11 @@
                                     case 19: {
                                             if (!(message.replicaComputeCapacity && message.replicaComputeCapacity.length))
                                                 message.replicaComputeCapacity = [];
-                                            message.replicaComputeCapacity.push($root.google.spanner.admin.instance.v1.ReplicaComputeCapacity.decode(reader, reader.uint32()));
+                                            message.replicaComputeCapacity.push($root.google.spanner.admin.instance.v1.ReplicaComputeCapacity.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 17: {
-                                            message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32());
+                                            message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 6: {
@@ -40612,10 +42163,12 @@
                                                     value = reader.string();
                                                     break;
                                                 default:
-                                                    reader.skipType(tag2 & 7);
+                                                    reader.skipType(tag2 & 7, long);
                                                     break;
                                                 }
                                             }
+                                            if (key === "__proto__")
+                                                $util.makeProp(message.labels, key);
                                             message.labels[key] = value;
                                             break;
                                         }
@@ -40630,15 +42183,15 @@
                                             break;
                                         }
                                     case 11: {
-                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 12: {
-                                            message.updateTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.updateTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 13: {
-                                            message.freeInstanceMetadata = $root.google.spanner.admin.instance.v1.FreeInstanceMetadata.decode(reader, reader.uint32());
+                                            message.freeInstanceMetadata = $root.google.spanner.admin.instance.v1.FreeInstanceMetadata.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 20: {
@@ -40650,7 +42203,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -40681,9 +42234,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            Instance.verify = function verify(message) {
+                            Instance.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -40703,13 +42260,13 @@
                                     if (!Array.isArray(message.replicaComputeCapacity))
                                         return "replicaComputeCapacity: array expected";
                                     for (var i = 0; i < message.replicaComputeCapacity.length; ++i) {
-                                        var error = $root.google.spanner.admin.instance.v1.ReplicaComputeCapacity.verify(message.replicaComputeCapacity[i]);
+                                        var error = $root.google.spanner.admin.instance.v1.ReplicaComputeCapacity.verify(message.replicaComputeCapacity[i], long + 1);
                                         if (error)
                                             return "replicaComputeCapacity." + error;
                                     }
                                 }
                                 if (message.autoscalingConfig != null && message.hasOwnProperty("autoscalingConfig")) {
-                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig, long + 1);
                                     if (error)
                                         return "autoscalingConfig." + error;
                                 }
@@ -40747,17 +42304,17 @@
                                             return "endpointUris: string[] expected";
                                 }
                                 if (message.createTime != null && message.hasOwnProperty("createTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime, long + 1);
                                     if (error)
                                         return "createTime." + error;
                                 }
                                 if (message.updateTime != null && message.hasOwnProperty("updateTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.updateTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.updateTime, long + 1);
                                     if (error)
                                         return "updateTime." + error;
                                 }
                                 if (message.freeInstanceMetadata != null && message.hasOwnProperty("freeInstanceMetadata")) {
-                                    var error = $root.google.spanner.admin.instance.v1.FreeInstanceMetadata.verify(message.freeInstanceMetadata);
+                                    var error = $root.google.spanner.admin.instance.v1.FreeInstanceMetadata.verify(message.freeInstanceMetadata, long + 1);
                                     if (error)
                                         return "freeInstanceMetadata." + error;
                                 }
@@ -40791,9 +42348,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.Instance} Instance
                              */
-                            Instance.fromObject = function fromObject(object) {
+                            Instance.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.Instance)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.Instance();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -40812,13 +42373,13 @@
                                     for (var i = 0; i < object.replicaComputeCapacity.length; ++i) {
                                         if (typeof object.replicaComputeCapacity[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.Instance.replicaComputeCapacity: object expected");
-                                        message.replicaComputeCapacity[i] = $root.google.spanner.admin.instance.v1.ReplicaComputeCapacity.fromObject(object.replicaComputeCapacity[i]);
+                                        message.replicaComputeCapacity[i] = $root.google.spanner.admin.instance.v1.ReplicaComputeCapacity.fromObject(object.replicaComputeCapacity[i], long + 1);
                                     }
                                 }
                                 if (object.autoscalingConfig != null) {
                                     if (typeof object.autoscalingConfig !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.Instance.autoscalingConfig: object expected");
-                                    message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig);
+                                    message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig, long + 1);
                                 }
                                 switch (object.state) {
                                 default:
@@ -40844,8 +42405,11 @@
                                     if (typeof object.labels !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.Instance.labels: object expected");
                                     message.labels = {};
-                                    for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i)
+                                    for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i) {
+                                        if (keys[i] === "__proto__")
+                                            $util.makeProp(message.labels, keys[i]);
                                         message.labels[keys[i]] = String(object.labels[keys[i]]);
+                                    }
                                 }
                                 switch (object.instanceType) {
                                 default:
@@ -40877,17 +42441,17 @@
                                 if (object.createTime != null) {
                                     if (typeof object.createTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.Instance.createTime: object expected");
-                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime);
+                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime, long + 1);
                                 }
                                 if (object.updateTime != null) {
                                     if (typeof object.updateTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.Instance.updateTime: object expected");
-                                    message.updateTime = $root.google.protobuf.Timestamp.fromObject(object.updateTime);
+                                    message.updateTime = $root.google.protobuf.Timestamp.fromObject(object.updateTime, long + 1);
                                 }
                                 if (object.freeInstanceMetadata != null) {
                                     if (typeof object.freeInstanceMetadata !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.Instance.freeInstanceMetadata: object expected");
-                                    message.freeInstanceMetadata = $root.google.spanner.admin.instance.v1.FreeInstanceMetadata.fromObject(object.freeInstanceMetadata);
+                                    message.freeInstanceMetadata = $root.google.spanner.admin.instance.v1.FreeInstanceMetadata.fromObject(object.freeInstanceMetadata, long + 1);
                                 }
                                 switch (object.edition) {
                                 default:
@@ -40983,8 +42547,11 @@
                                 var keys2;
                                 if (message.labels && (keys2 = Object.keys(message.labels)).length) {
                                     object.labels = {};
-                                    for (var j = 0; j < keys2.length; ++j)
+                                    for (var j = 0; j < keys2.length; ++j) {
+                                        if (keys2[j] === "__proto__")
+                                            $util.makeProp(object.labels, keys2[j]);
                                         object.labels[keys2[j]] = message.labels[keys2[j]];
+                                    }
                                 }
                                 if (message.endpointUris && message.endpointUris.length) {
                                     object.endpointUris = [];
@@ -41132,7 +42699,7 @@
                             function ListInstanceConfigsRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -41217,9 +42784,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstanceConfigsRequest.decode = function decode(reader, length, error) {
+                            ListInstanceConfigsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -41239,7 +42810,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -41270,9 +42841,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstanceConfigsRequest.verify = function verify(message) {
+                            ListInstanceConfigsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -41293,9 +42868,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstanceConfigsRequest} ListInstanceConfigsRequest
                              */
-                            ListInstanceConfigsRequest.fromObject = function fromObject(object) {
+                            ListInstanceConfigsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstanceConfigsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigsRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -41384,7 +42963,7 @@
                                 this.instanceConfigs = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -41460,9 +43039,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstanceConfigsResponse.decode = function decode(reader, length, error) {
+                            ListInstanceConfigsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -41472,7 +43055,7 @@
                                     case 1: {
                                             if (!(message.instanceConfigs && message.instanceConfigs.length))
                                                 message.instanceConfigs = [];
-                                            message.instanceConfigs.push($root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32()));
+                                            message.instanceConfigs.push($root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -41480,7 +43063,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -41511,14 +43094,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstanceConfigsResponse.verify = function verify(message) {
+                            ListInstanceConfigsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instanceConfigs != null && message.hasOwnProperty("instanceConfigs")) {
                                     if (!Array.isArray(message.instanceConfigs))
                                         return "instanceConfigs: array expected";
                                     for (var i = 0; i < message.instanceConfigs.length; ++i) {
-                                        var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfigs[i]);
+                                        var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfigs[i], long + 1);
                                         if (error)
                                             return "instanceConfigs." + error;
                                     }
@@ -41537,9 +43124,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstanceConfigsResponse} ListInstanceConfigsResponse
                              */
-                            ListInstanceConfigsResponse.fromObject = function fromObject(object) {
+                            ListInstanceConfigsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstanceConfigsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigsResponse();
                                 if (object.instanceConfigs) {
                                     if (!Array.isArray(object.instanceConfigs))
@@ -41548,7 +43139,7 @@
                                     for (var i = 0; i < object.instanceConfigs.length; ++i) {
                                         if (typeof object.instanceConfigs[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.ListInstanceConfigsResponse.instanceConfigs: object expected");
-                                        message.instanceConfigs[i] = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfigs[i]);
+                                        message.instanceConfigs[i] = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfigs[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -41632,7 +43223,7 @@
                             function GetInstanceConfigRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -41697,9 +43288,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetInstanceConfigRequest.decode = function decode(reader, length, error) {
+                            GetInstanceConfigRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.GetInstanceConfigRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -41711,7 +43306,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -41742,9 +43337,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetInstanceConfigRequest.verify = function verify(message) {
+                            GetInstanceConfigRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -41759,9 +43358,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.GetInstanceConfigRequest} GetInstanceConfigRequest
                              */
-                            GetInstanceConfigRequest.fromObject = function fromObject(object) {
+                            GetInstanceConfigRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.GetInstanceConfigRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.GetInstanceConfigRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -41840,7 +43443,7 @@
                             function CreateInstanceConfigRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -41935,9 +43538,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateInstanceConfigRequest.decode = function decode(reader, length, error) {
+                            CreateInstanceConfigRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.CreateInstanceConfigRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -41953,7 +43560,7 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32());
+                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
@@ -41961,7 +43568,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -41992,9 +43599,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateInstanceConfigRequest.verify = function verify(message) {
+                            CreateInstanceConfigRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -42002,7 +43613,7 @@
                                     if (!$util.isString(message.instanceConfigId))
                                         return "instanceConfigId: string expected";
                                 if (message.instanceConfig != null && message.hasOwnProperty("instanceConfig")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig, long + 1);
                                     if (error)
                                         return "instanceConfig." + error;
                                 }
@@ -42020,9 +43631,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.CreateInstanceConfigRequest} CreateInstanceConfigRequest
                              */
-                            CreateInstanceConfigRequest.fromObject = function fromObject(object) {
+                            CreateInstanceConfigRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.CreateInstanceConfigRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.CreateInstanceConfigRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -42031,7 +43646,7 @@
                                 if (object.instanceConfig != null) {
                                     if (typeof object.instanceConfig !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceConfigRequest.instanceConfig: object expected");
-                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig);
+                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig, long + 1);
                                 }
                                 if (object.validateOnly != null)
                                     message.validateOnly = Boolean(object.validateOnly);
@@ -42119,7 +43734,7 @@
                             function UpdateInstanceConfigRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -42204,9 +43819,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateInstanceConfigRequest.decode = function decode(reader, length, error) {
+                            UpdateInstanceConfigRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.UpdateInstanceConfigRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -42214,11 +43833,11 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32());
+                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                            message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
@@ -42226,7 +43845,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -42257,16 +43876,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateInstanceConfigRequest.verify = function verify(message) {
+                            UpdateInstanceConfigRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instanceConfig != null && message.hasOwnProperty("instanceConfig")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig, long + 1);
                                     if (error)
                                         return "instanceConfig." + error;
                                 }
                                 if (message.updateMask != null && message.hasOwnProperty("updateMask")) {
-                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask);
+                                    var error = $root.google.protobuf.FieldMask.verify(message.updateMask, long + 1);
                                     if (error)
                                         return "updateMask." + error;
                                 }
@@ -42284,19 +43907,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.UpdateInstanceConfigRequest} UpdateInstanceConfigRequest
                              */
-                            UpdateInstanceConfigRequest.fromObject = function fromObject(object) {
+                            UpdateInstanceConfigRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.UpdateInstanceConfigRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.UpdateInstanceConfigRequest();
                                 if (object.instanceConfig != null) {
                                     if (typeof object.instanceConfig !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceConfigRequest.instanceConfig: object expected");
-                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig);
+                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig, long + 1);
                                 }
                                 if (object.updateMask != null) {
                                     if (typeof object.updateMask !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceConfigRequest.updateMask: object expected");
-                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask);
+                                    message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask, long + 1);
                                 }
                                 if (object.validateOnly != null)
                                     message.validateOnly = Boolean(object.validateOnly);
@@ -42381,7 +44008,7 @@
                             function DeleteInstanceConfigRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -42466,9 +44093,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DeleteInstanceConfigRequest.decode = function decode(reader, length, error) {
+                            DeleteInstanceConfigRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.DeleteInstanceConfigRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -42488,7 +44119,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -42519,9 +44150,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DeleteInstanceConfigRequest.verify = function verify(message) {
+                            DeleteInstanceConfigRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -42542,9 +44177,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.DeleteInstanceConfigRequest} DeleteInstanceConfigRequest
                              */
-                            DeleteInstanceConfigRequest.fromObject = function fromObject(object) {
+                            DeleteInstanceConfigRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.DeleteInstanceConfigRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.DeleteInstanceConfigRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -42634,7 +44273,7 @@
                             function ListInstanceConfigOperationsRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -42729,9 +44368,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstanceConfigOperationsRequest.decode = function decode(reader, length, error) {
+                            ListInstanceConfigOperationsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigOperationsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -42755,7 +44398,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -42786,9 +44429,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstanceConfigOperationsRequest.verify = function verify(message) {
+                            ListInstanceConfigOperationsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -42812,9 +44459,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstanceConfigOperationsRequest} ListInstanceConfigOperationsRequest
                              */
-                            ListInstanceConfigOperationsRequest.fromObject = function fromObject(object) {
+                            ListInstanceConfigOperationsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstanceConfigOperationsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigOperationsRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -42908,7 +44559,7 @@
                                 this.operations = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -42984,9 +44635,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstanceConfigOperationsResponse.decode = function decode(reader, length, error) {
+                            ListInstanceConfigOperationsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -42996,7 +44651,7 @@
                                     case 1: {
                                             if (!(message.operations && message.operations.length))
                                                 message.operations = [];
-                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -43004,7 +44659,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -43035,14 +44690,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstanceConfigOperationsResponse.verify = function verify(message) {
+                            ListInstanceConfigOperationsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.operations != null && message.hasOwnProperty("operations")) {
                                     if (!Array.isArray(message.operations))
                                         return "operations: array expected";
                                     for (var i = 0; i < message.operations.length; ++i) {
-                                        var error = $root.google.longrunning.Operation.verify(message.operations[i]);
+                                        var error = $root.google.longrunning.Operation.verify(message.operations[i], long + 1);
                                         if (error)
                                             return "operations." + error;
                                     }
@@ -43061,9 +44720,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse} ListInstanceConfigOperationsResponse
                              */
-                            ListInstanceConfigOperationsResponse.fromObject = function fromObject(object) {
+                            ListInstanceConfigOperationsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse();
                                 if (object.operations) {
                                     if (!Array.isArray(object.operations))
@@ -43072,7 +44735,7 @@
                                     for (var i = 0; i < object.operations.length; ++i) {
                                         if (typeof object.operations[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse.operations: object expected");
-                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i]);
+                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -43157,7 +44820,7 @@
                             function GetInstanceRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -43232,9 +44895,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetInstanceRequest.decode = function decode(reader, length, error) {
+                            GetInstanceRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.GetInstanceRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -43246,11 +44913,11 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.fieldMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                            message.fieldMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -43281,14 +44948,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetInstanceRequest.verify = function verify(message) {
+                            GetInstanceRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
                                 if (message.fieldMask != null && message.hasOwnProperty("fieldMask")) {
-                                    var error = $root.google.protobuf.FieldMask.verify(message.fieldMask);
+                                    var error = $root.google.protobuf.FieldMask.verify(message.fieldMask, long + 1);
                                     if (error)
                                         return "fieldMask." + error;
                                 }
@@ -43303,16 +44974,20 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.GetInstanceRequest} GetInstanceRequest
                              */
-                            GetInstanceRequest.fromObject = function fromObject(object) {
+                            GetInstanceRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.GetInstanceRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.GetInstanceRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
                                 if (object.fieldMask != null) {
                                     if (typeof object.fieldMask !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.GetInstanceRequest.fieldMask: object expected");
-                                    message.fieldMask = $root.google.protobuf.FieldMask.fromObject(object.fieldMask);
+                                    message.fieldMask = $root.google.protobuf.FieldMask.fromObject(object.fieldMask, long + 1);
                                 }
                                 return message;
                             };
@@ -43392,7 +45067,7 @@
                             function CreateInstanceRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -43477,9 +45152,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateInstanceRequest.decode = function decode(reader, length, error) {
+                            CreateInstanceRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.CreateInstanceRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -43495,11 +45174,11 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32());
+                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -43530,9 +45209,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateInstanceRequest.verify = function verify(message) {
+                            CreateInstanceRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -43540,7 +45223,7 @@
                                     if (!$util.isString(message.instanceId))
                                         return "instanceId: string expected";
                                 if (message.instance != null && message.hasOwnProperty("instance")) {
-                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance);
+                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance, long + 1);
                                     if (error)
                                         return "instance." + error;
                                 }
@@ -43555,9 +45238,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.CreateInstanceRequest} CreateInstanceRequest
                              */
-                            CreateInstanceRequest.fromObject = function fromObject(object) {
+                            CreateInstanceRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.CreateInstanceRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.CreateInstanceRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -43566,7 +45253,7 @@
                                 if (object.instance != null) {
                                     if (typeof object.instance !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceRequest.instance: object expected");
-                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance);
+                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance, long + 1);
                                 }
                                 return message;
                             };
@@ -43651,7 +45338,7 @@
                             function ListInstancesRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -43756,9 +45443,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstancesRequest.decode = function decode(reader, length, error) {
+                            ListInstancesRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstancesRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -43782,11 +45473,11 @@
                                             break;
                                         }
                                     case 5: {
-                                            message.instanceDeadline = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.instanceDeadline = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -43817,9 +45508,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstancesRequest.verify = function verify(message) {
+                            ListInstancesRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -43833,7 +45528,7 @@
                                     if (!$util.isString(message.filter))
                                         return "filter: string expected";
                                 if (message.instanceDeadline != null && message.hasOwnProperty("instanceDeadline")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.instanceDeadline);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.instanceDeadline, long + 1);
                                     if (error)
                                         return "instanceDeadline." + error;
                                 }
@@ -43848,9 +45543,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstancesRequest} ListInstancesRequest
                              */
-                            ListInstancesRequest.fromObject = function fromObject(object) {
+                            ListInstancesRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstancesRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstancesRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -43863,7 +45562,7 @@
                                 if (object.instanceDeadline != null) {
                                     if (typeof object.instanceDeadline !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.ListInstancesRequest.instanceDeadline: object expected");
-                                    message.instanceDeadline = $root.google.protobuf.Timestamp.fromObject(object.instanceDeadline);
+                                    message.instanceDeadline = $root.google.protobuf.Timestamp.fromObject(object.instanceDeadline, long + 1);
                                 }
                                 return message;
                             };
@@ -43954,7 +45653,7 @@
                                 this.unreachable = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -44041,9 +45740,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstancesResponse.decode = function decode(reader, length, error) {
+                            ListInstancesResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstancesResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -44053,7 +45756,7 @@
                                     case 1: {
                                             if (!(message.instances && message.instances.length))
                                                 message.instances = [];
-                                            message.instances.push($root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32()));
+                                            message.instances.push($root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -44067,7 +45770,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -44098,14 +45801,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstancesResponse.verify = function verify(message) {
+                            ListInstancesResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instances != null && message.hasOwnProperty("instances")) {
                                     if (!Array.isArray(message.instances))
                                         return "instances: array expected";
                                     for (var i = 0; i < message.instances.length; ++i) {
-                                        var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instances[i]);
+                                        var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instances[i], long + 1);
                                         if (error)
                                             return "instances." + error;
                                     }
@@ -44131,9 +45838,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstancesResponse} ListInstancesResponse
                              */
-                            ListInstancesResponse.fromObject = function fromObject(object) {
+                            ListInstancesResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstancesResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstancesResponse();
                                 if (object.instances) {
                                     if (!Array.isArray(object.instances))
@@ -44142,7 +45853,7 @@
                                     for (var i = 0; i < object.instances.length; ++i) {
                                         if (typeof object.instances[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.ListInstancesResponse.instances: object expected");
-                                        message.instances[i] = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instances[i]);
+                                        message.instances[i] = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instances[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -44241,7 +45952,7 @@
                             function UpdateInstanceRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -44316,9 +46027,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateInstanceRequest.decode = function decode(reader, length, error) {
+                            UpdateInstanceRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.UpdateInstanceRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -44326,15 +46041,15 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32());
+                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.fieldMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                            message.fieldMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -44365,16 +46080,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateInstanceRequest.verify = function verify(message) {
+                            UpdateInstanceRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instance != null && message.hasOwnProperty("instance")) {
-                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance);
+                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance, long + 1);
                                     if (error)
                                         return "instance." + error;
                                 }
                                 if (message.fieldMask != null && message.hasOwnProperty("fieldMask")) {
-                                    var error = $root.google.protobuf.FieldMask.verify(message.fieldMask);
+                                    var error = $root.google.protobuf.FieldMask.verify(message.fieldMask, long + 1);
                                     if (error)
                                         return "fieldMask." + error;
                                 }
@@ -44389,19 +46108,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.UpdateInstanceRequest} UpdateInstanceRequest
                              */
-                            UpdateInstanceRequest.fromObject = function fromObject(object) {
+                            UpdateInstanceRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.UpdateInstanceRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.UpdateInstanceRequest();
                                 if (object.instance != null) {
                                     if (typeof object.instance !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceRequest.instance: object expected");
-                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance);
+                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance, long + 1);
                                 }
                                 if (object.fieldMask != null) {
                                     if (typeof object.fieldMask !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceRequest.fieldMask: object expected");
-                                    message.fieldMask = $root.google.protobuf.FieldMask.fromObject(object.fieldMask);
+                                    message.fieldMask = $root.google.protobuf.FieldMask.fromObject(object.fieldMask, long + 1);
                                 }
                                 return message;
                             };
@@ -44479,7 +46202,7 @@
                             function DeleteInstanceRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -44544,9 +46267,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DeleteInstanceRequest.decode = function decode(reader, length, error) {
+                            DeleteInstanceRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.DeleteInstanceRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -44558,7 +46285,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -44589,9 +46316,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DeleteInstanceRequest.verify = function verify(message) {
+                            DeleteInstanceRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -44606,9 +46337,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.DeleteInstanceRequest} DeleteInstanceRequest
                              */
-                            DeleteInstanceRequest.fromObject = function fromObject(object) {
+                            DeleteInstanceRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.DeleteInstanceRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.DeleteInstanceRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -44688,7 +46423,7 @@
                             function CreateInstanceMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -44793,9 +46528,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateInstanceMetadata.decode = function decode(reader, length, error) {
+                            CreateInstanceMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.CreateInstanceMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -44803,19 +46542,19 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32());
+                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
@@ -44823,7 +46562,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -44854,26 +46593,30 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateInstanceMetadata.verify = function verify(message) {
+                            CreateInstanceMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instance != null && message.hasOwnProperty("instance")) {
-                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance);
+                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance, long + 1);
                                     if (error)
                                         return "instance." + error;
                                 }
                                 if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                     if (error)
                                         return "startTime." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
                                 if (message.endTime != null && message.hasOwnProperty("endTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime, long + 1);
                                     if (error)
                                         return "endTime." + error;
                                 }
@@ -44897,29 +46640,33 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.CreateInstanceMetadata} CreateInstanceMetadata
                              */
-                            CreateInstanceMetadata.fromObject = function fromObject(object) {
+                            CreateInstanceMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.CreateInstanceMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.CreateInstanceMetadata();
                                 if (object.instance != null) {
                                     if (typeof object.instance !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceMetadata.instance: object expected");
-                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance);
+                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance, long + 1);
                                 }
                                 if (object.startTime != null) {
                                     if (typeof object.startTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceMetadata.startTime: object expected");
-                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 if (object.endTime != null) {
                                     if (typeof object.endTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceMetadata.endTime: object expected");
-                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime, long + 1);
                                 }
                                 switch (object.expectedFulfillmentPeriod) {
                                 default:
@@ -45030,7 +46777,7 @@
                             function UpdateInstanceMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -45135,9 +46882,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateInstanceMetadata.decode = function decode(reader, length, error) {
+                            UpdateInstanceMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.UpdateInstanceMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -45145,19 +46896,19 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32());
+                                            message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
@@ -45165,7 +46916,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -45196,26 +46947,30 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateInstanceMetadata.verify = function verify(message) {
+                            UpdateInstanceMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instance != null && message.hasOwnProperty("instance")) {
-                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance);
+                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance, long + 1);
                                     if (error)
                                         return "instance." + error;
                                 }
                                 if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                     if (error)
                                         return "startTime." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
                                 if (message.endTime != null && message.hasOwnProperty("endTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime, long + 1);
                                     if (error)
                                         return "endTime." + error;
                                 }
@@ -45239,29 +46994,33 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.UpdateInstanceMetadata} UpdateInstanceMetadata
                              */
-                            UpdateInstanceMetadata.fromObject = function fromObject(object) {
+                            UpdateInstanceMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.UpdateInstanceMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.UpdateInstanceMetadata();
                                 if (object.instance != null) {
                                     if (typeof object.instance !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceMetadata.instance: object expected");
-                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance);
+                                    message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance, long + 1);
                                 }
                                 if (object.startTime != null) {
                                     if (typeof object.startTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceMetadata.startTime: object expected");
-                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 if (object.endTime != null) {
                                     if (typeof object.endTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceMetadata.endTime: object expected");
-                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime, long + 1);
                                 }
                                 switch (object.expectedFulfillmentPeriod) {
                                 default:
@@ -45370,7 +47129,7 @@
                             function FreeInstanceMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -45455,9 +47214,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            FreeInstanceMetadata.decode = function decode(reader, length, error) {
+                            FreeInstanceMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.FreeInstanceMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -45465,11 +47228,11 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.upgradeTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.upgradeTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
@@ -45477,7 +47240,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -45508,16 +47271,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            FreeInstanceMetadata.verify = function verify(message) {
+                            FreeInstanceMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.expireTime, long + 1);
                                     if (error)
                                         return "expireTime." + error;
                                 }
                                 if (message.upgradeTime != null && message.hasOwnProperty("upgradeTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.upgradeTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.upgradeTime, long + 1);
                                     if (error)
                                         return "upgradeTime." + error;
                                 }
@@ -45541,19 +47308,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.FreeInstanceMetadata} FreeInstanceMetadata
                              */
-                            FreeInstanceMetadata.fromObject = function fromObject(object) {
+                            FreeInstanceMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.FreeInstanceMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.FreeInstanceMetadata();
                                 if (object.expireTime != null) {
                                     if (typeof object.expireTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.FreeInstanceMetadata.expireTime: object expected");
-                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                                    message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime, long + 1);
                                 }
                                 if (object.upgradeTime != null) {
                                     if (typeof object.upgradeTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.FreeInstanceMetadata.upgradeTime: object expected");
-                                    message.upgradeTime = $root.google.protobuf.Timestamp.fromObject(object.upgradeTime);
+                                    message.upgradeTime = $root.google.protobuf.Timestamp.fromObject(object.upgradeTime, long + 1);
                                 }
                                 switch (object.expireBehavior) {
                                 default:
@@ -45672,7 +47443,7 @@
                             function CreateInstanceConfigMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -45757,9 +47528,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateInstanceConfigMetadata.decode = function decode(reader, length, error) {
+                            CreateInstanceConfigMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.CreateInstanceConfigMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -45767,19 +47542,19 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32());
+                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -45810,21 +47585,25 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateInstanceConfigMetadata.verify = function verify(message) {
+                            CreateInstanceConfigMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instanceConfig != null && message.hasOwnProperty("instanceConfig")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig, long + 1);
                                     if (error)
                                         return "instanceConfig." + error;
                                 }
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.instance.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.instance.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
@@ -45839,24 +47618,28 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.CreateInstanceConfigMetadata} CreateInstanceConfigMetadata
                              */
-                            CreateInstanceConfigMetadata.fromObject = function fromObject(object) {
+                            CreateInstanceConfigMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.CreateInstanceConfigMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.CreateInstanceConfigMetadata();
                                 if (object.instanceConfig != null) {
                                     if (typeof object.instanceConfig !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceConfigMetadata.instanceConfig: object expected");
-                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig);
+                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig, long + 1);
                                 }
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceConfigMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstanceConfigMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 return message;
                             };
@@ -45939,7 +47722,7 @@
                             function UpdateInstanceConfigMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -46024,9 +47807,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateInstanceConfigMetadata.decode = function decode(reader, length, error) {
+                            UpdateInstanceConfigMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -46034,19 +47821,19 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32());
+                                            message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -46077,21 +47864,25 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateInstanceConfigMetadata.verify = function verify(message) {
+                            UpdateInstanceConfigMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instanceConfig != null && message.hasOwnProperty("instanceConfig")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig, long + 1);
                                     if (error)
                                         return "instanceConfig." + error;
                                 }
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.instance.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.instance.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
@@ -46106,24 +47897,28 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata} UpdateInstanceConfigMetadata
                              */
-                            UpdateInstanceConfigMetadata.fromObject = function fromObject(object) {
+                            UpdateInstanceConfigMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata();
                                 if (object.instanceConfig != null) {
                                     if (typeof object.instanceConfig !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata.instanceConfig: object expected");
-                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig);
+                                    message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig, long + 1);
                                 }
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 return message;
                             };
@@ -46217,7 +48012,7 @@
                                 this.referencingBackups = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -46408,9 +48203,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            InstancePartition.decode = function decode(reader, length, error) {
+                            InstancePartition.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.InstancePartition();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -46438,7 +48237,7 @@
                                             break;
                                         }
                                     case 13: {
-                                            message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32());
+                                            message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 7: {
@@ -46446,11 +48245,11 @@
                                             break;
                                         }
                                     case 8: {
-                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 9: {
-                                            message.updateTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.updateTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 10: {
@@ -46470,7 +48269,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -46501,9 +48300,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            InstancePartition.verify = function verify(message) {
+                            InstancePartition.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
@@ -46527,7 +48330,7 @@
                                         return "processingUnits: integer expected";
                                 }
                                 if (message.autoscalingConfig != null && message.hasOwnProperty("autoscalingConfig")) {
-                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig, long + 1);
                                     if (error)
                                         return "autoscalingConfig." + error;
                                 }
@@ -46541,12 +48344,12 @@
                                         break;
                                     }
                                 if (message.createTime != null && message.hasOwnProperty("createTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.createTime, long + 1);
                                     if (error)
                                         return "createTime." + error;
                                 }
                                 if (message.updateTime != null && message.hasOwnProperty("updateTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.updateTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.updateTime, long + 1);
                                     if (error)
                                         return "updateTime." + error;
                                 }
@@ -46578,9 +48381,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.InstancePartition} InstancePartition
                              */
-                            InstancePartition.fromObject = function fromObject(object) {
+                            InstancePartition.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.InstancePartition)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.InstancePartition();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -46595,7 +48402,7 @@
                                 if (object.autoscalingConfig != null) {
                                     if (typeof object.autoscalingConfig !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.InstancePartition.autoscalingConfig: object expected");
-                                    message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig);
+                                    message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig, long + 1);
                                 }
                                 switch (object.state) {
                                 default:
@@ -46620,12 +48427,12 @@
                                 if (object.createTime != null) {
                                     if (typeof object.createTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.InstancePartition.createTime: object expected");
-                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime);
+                                    message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime, long + 1);
                                 }
                                 if (object.updateTime != null) {
                                     if (typeof object.updateTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.InstancePartition.updateTime: object expected");
-                                    message.updateTime = $root.google.protobuf.Timestamp.fromObject(object.updateTime);
+                                    message.updateTime = $root.google.protobuf.Timestamp.fromObject(object.updateTime, long + 1);
                                 }
                                 if (object.referencingDatabases) {
                                     if (!Array.isArray(object.referencingDatabases))
@@ -46780,7 +48587,7 @@
                             function CreateInstancePartitionMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -46875,9 +48682,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateInstancePartitionMetadata.decode = function decode(reader, length, error) {
+                            CreateInstancePartitionMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.CreateInstancePartitionMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -46885,23 +48696,23 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32());
+                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -46932,26 +48743,30 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateInstancePartitionMetadata.verify = function verify(message) {
+                            CreateInstancePartitionMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instancePartition != null && message.hasOwnProperty("instancePartition")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition);
+                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition, long + 1);
                                     if (error)
                                         return "instancePartition." + error;
                                 }
                                 if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                     if (error)
                                         return "startTime." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
                                 if (message.endTime != null && message.hasOwnProperty("endTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime, long + 1);
                                     if (error)
                                         return "endTime." + error;
                                 }
@@ -46966,29 +48781,33 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.CreateInstancePartitionMetadata} CreateInstancePartitionMetadata
                              */
-                            CreateInstancePartitionMetadata.fromObject = function fromObject(object) {
+                            CreateInstancePartitionMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.CreateInstancePartitionMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.CreateInstancePartitionMetadata();
                                 if (object.instancePartition != null) {
                                     if (typeof object.instancePartition !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstancePartitionMetadata.instancePartition: object expected");
-                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition);
+                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition, long + 1);
                                 }
                                 if (object.startTime != null) {
                                     if (typeof object.startTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstancePartitionMetadata.startTime: object expected");
-                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstancePartitionMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 if (object.endTime != null) {
                                     if (typeof object.endTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstancePartitionMetadata.endTime: object expected");
-                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime, long + 1);
                                 }
                                 return message;
                             };
@@ -47074,7 +48893,7 @@
                             function CreateInstancePartitionRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -47159,9 +48978,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            CreateInstancePartitionRequest.decode = function decode(reader, length, error) {
+                            CreateInstancePartitionRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.CreateInstancePartitionRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -47177,11 +49000,11 @@
                                             break;
                                         }
                                     case 3: {
-                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32());
+                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -47212,9 +49035,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            CreateInstancePartitionRequest.verify = function verify(message) {
+                            CreateInstancePartitionRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -47222,7 +49049,7 @@
                                     if (!$util.isString(message.instancePartitionId))
                                         return "instancePartitionId: string expected";
                                 if (message.instancePartition != null && message.hasOwnProperty("instancePartition")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition);
+                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition, long + 1);
                                     if (error)
                                         return "instancePartition." + error;
                                 }
@@ -47237,9 +49064,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.CreateInstancePartitionRequest} CreateInstancePartitionRequest
                              */
-                            CreateInstancePartitionRequest.fromObject = function fromObject(object) {
+                            CreateInstancePartitionRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.CreateInstancePartitionRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.CreateInstancePartitionRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -47248,7 +49079,7 @@
                                 if (object.instancePartition != null) {
                                     if (typeof object.instancePartition !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.CreateInstancePartitionRequest.instancePartition: object expected");
-                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition);
+                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition, long + 1);
                                 }
                                 return message;
                             };
@@ -47330,7 +49161,7 @@
                             function DeleteInstancePartitionRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -47405,9 +49236,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            DeleteInstancePartitionRequest.decode = function decode(reader, length, error) {
+                            DeleteInstancePartitionRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.DeleteInstancePartitionRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -47423,7 +49258,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -47454,9 +49289,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            DeleteInstancePartitionRequest.verify = function verify(message) {
+                            DeleteInstancePartitionRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -47474,9 +49313,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.DeleteInstancePartitionRequest} DeleteInstancePartitionRequest
                              */
-                            DeleteInstancePartitionRequest.fromObject = function fromObject(object) {
+                            DeleteInstancePartitionRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.DeleteInstancePartitionRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.DeleteInstancePartitionRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -47558,7 +49401,7 @@
                             function GetInstancePartitionRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -47623,9 +49466,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            GetInstancePartitionRequest.decode = function decode(reader, length, error) {
+                            GetInstancePartitionRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.GetInstancePartitionRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -47637,7 +49484,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -47668,9 +49515,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            GetInstancePartitionRequest.verify = function verify(message) {
+                            GetInstancePartitionRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -47685,9 +49536,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.GetInstancePartitionRequest} GetInstancePartitionRequest
                              */
-                            GetInstancePartitionRequest.fromObject = function fromObject(object) {
+                            GetInstancePartitionRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.GetInstancePartitionRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.GetInstancePartitionRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -47764,7 +49619,7 @@
                             function UpdateInstancePartitionRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -47839,9 +49694,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateInstancePartitionRequest.decode = function decode(reader, length, error) {
+                            UpdateInstancePartitionRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.UpdateInstancePartitionRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -47849,15 +49708,15 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32());
+                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.fieldMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                            message.fieldMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -47888,16 +49747,20 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateInstancePartitionRequest.verify = function verify(message) {
+                            UpdateInstancePartitionRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instancePartition != null && message.hasOwnProperty("instancePartition")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition);
+                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition, long + 1);
                                     if (error)
                                         return "instancePartition." + error;
                                 }
                                 if (message.fieldMask != null && message.hasOwnProperty("fieldMask")) {
-                                    var error = $root.google.protobuf.FieldMask.verify(message.fieldMask);
+                                    var error = $root.google.protobuf.FieldMask.verify(message.fieldMask, long + 1);
                                     if (error)
                                         return "fieldMask." + error;
                                 }
@@ -47912,19 +49775,23 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.UpdateInstancePartitionRequest} UpdateInstancePartitionRequest
                              */
-                            UpdateInstancePartitionRequest.fromObject = function fromObject(object) {
+                            UpdateInstancePartitionRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.UpdateInstancePartitionRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.UpdateInstancePartitionRequest();
                                 if (object.instancePartition != null) {
                                     if (typeof object.instancePartition !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstancePartitionRequest.instancePartition: object expected");
-                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition);
+                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition, long + 1);
                                 }
                                 if (object.fieldMask != null) {
                                     if (typeof object.fieldMask !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstancePartitionRequest.fieldMask: object expected");
-                                    message.fieldMask = $root.google.protobuf.FieldMask.fromObject(object.fieldMask);
+                                    message.fieldMask = $root.google.protobuf.FieldMask.fromObject(object.fieldMask, long + 1);
                                 }
                                 return message;
                             };
@@ -48005,7 +49872,7 @@
                             function UpdateInstancePartitionMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -48100,9 +49967,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateInstancePartitionMetadata.decode = function decode(reader, length, error) {
+                            UpdateInstancePartitionMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -48110,23 +49981,23 @@
                                         break;
                                     switch (tag >>> 3) {
                                     case 1: {
-                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32());
+                                            message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 2: {
-                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -48157,26 +50028,30 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateInstancePartitionMetadata.verify = function verify(message) {
+                            UpdateInstancePartitionMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instancePartition != null && message.hasOwnProperty("instancePartition")) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition);
+                                    var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartition, long + 1);
                                     if (error)
                                         return "instancePartition." + error;
                                 }
                                 if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                     if (error)
                                         return "startTime." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
                                 if (message.endTime != null && message.hasOwnProperty("endTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime, long + 1);
                                     if (error)
                                         return "endTime." + error;
                                 }
@@ -48191,29 +50066,33 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata} UpdateInstancePartitionMetadata
                              */
-                            UpdateInstancePartitionMetadata.fromObject = function fromObject(object) {
+                            UpdateInstancePartitionMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata();
                                 if (object.instancePartition != null) {
                                     if (typeof object.instancePartition !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata.instancePartition: object expected");
-                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition);
+                                    message.instancePartition = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartition, long + 1);
                                 }
                                 if (object.startTime != null) {
                                     if (typeof object.startTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata.startTime: object expected");
-                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                    message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 if (object.endTime != null) {
                                     if (typeof object.endTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.UpdateInstancePartitionMetadata.endTime: object expected");
-                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                                    message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime, long + 1);
                                 }
                                 return message;
                             };
@@ -48300,7 +50179,7 @@
                             function ListInstancePartitionsRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -48395,9 +50274,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstancePartitionsRequest.decode = function decode(reader, length, error) {
+                            ListInstancePartitionsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -48417,11 +50300,11 @@
                                             break;
                                         }
                                     case 4: {
-                                            message.instancePartitionDeadline = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.instancePartitionDeadline = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -48452,9 +50335,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstancePartitionsRequest.verify = function verify(message) {
+                            ListInstancePartitionsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -48465,7 +50352,7 @@
                                     if (!$util.isString(message.pageToken))
                                         return "pageToken: string expected";
                                 if (message.instancePartitionDeadline != null && message.hasOwnProperty("instancePartitionDeadline")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.instancePartitionDeadline);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.instancePartitionDeadline, long + 1);
                                     if (error)
                                         return "instancePartitionDeadline." + error;
                                 }
@@ -48480,9 +50367,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstancePartitionsRequest} ListInstancePartitionsRequest
                              */
-                            ListInstancePartitionsRequest.fromObject = function fromObject(object) {
+                            ListInstancePartitionsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstancePartitionsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionsRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -48493,7 +50384,7 @@
                                 if (object.instancePartitionDeadline != null) {
                                     if (typeof object.instancePartitionDeadline !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.ListInstancePartitionsRequest.instancePartitionDeadline: object expected");
-                                    message.instancePartitionDeadline = $root.google.protobuf.Timestamp.fromObject(object.instancePartitionDeadline);
+                                    message.instancePartitionDeadline = $root.google.protobuf.Timestamp.fromObject(object.instancePartitionDeadline, long + 1);
                                 }
                                 return message;
                             };
@@ -48581,7 +50472,7 @@
                                 this.unreachable = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -48668,9 +50559,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstancePartitionsResponse.decode = function decode(reader, length, error) {
+                            ListInstancePartitionsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -48680,7 +50575,7 @@
                                     case 1: {
                                             if (!(message.instancePartitions && message.instancePartitions.length))
                                                 message.instancePartitions = [];
-                                            message.instancePartitions.push($root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32()));
+                                            message.instancePartitions.push($root.google.spanner.admin.instance.v1.InstancePartition.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -48694,7 +50589,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -48725,14 +50620,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstancePartitionsResponse.verify = function verify(message) {
+                            ListInstancePartitionsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.instancePartitions != null && message.hasOwnProperty("instancePartitions")) {
                                     if (!Array.isArray(message.instancePartitions))
                                         return "instancePartitions: array expected";
                                     for (var i = 0; i < message.instancePartitions.length; ++i) {
-                                        var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartitions[i]);
+                                        var error = $root.google.spanner.admin.instance.v1.InstancePartition.verify(message.instancePartitions[i], long + 1);
                                         if (error)
                                             return "instancePartitions." + error;
                                     }
@@ -48758,9 +50657,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstancePartitionsResponse} ListInstancePartitionsResponse
                              */
-                            ListInstancePartitionsResponse.fromObject = function fromObject(object) {
+                            ListInstancePartitionsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstancePartitionsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionsResponse();
                                 if (object.instancePartitions) {
                                     if (!Array.isArray(object.instancePartitions))
@@ -48769,7 +50672,7 @@
                                     for (var i = 0; i < object.instancePartitions.length; ++i) {
                                         if (typeof object.instancePartitions[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.ListInstancePartitionsResponse.instancePartitions: object expected");
-                                        message.instancePartitions[i] = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartitions[i]);
+                                        message.instancePartitions[i] = $root.google.spanner.admin.instance.v1.InstancePartition.fromObject(object.instancePartitions[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -48871,7 +50774,7 @@
                             function ListInstancePartitionOperationsRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -48976,9 +50879,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstancePartitionOperationsRequest.decode = function decode(reader, length, error) {
+                            ListInstancePartitionOperationsRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -49002,11 +50909,11 @@
                                             break;
                                         }
                                     case 5: {
-                                            message.instancePartitionDeadline = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.instancePartitionDeadline = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -49037,9 +50944,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstancePartitionOperationsRequest.verify = function verify(message) {
+                            ListInstancePartitionOperationsRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.parent != null && message.hasOwnProperty("parent"))
                                     if (!$util.isString(message.parent))
                                         return "parent: string expected";
@@ -49053,7 +50964,7 @@
                                     if (!$util.isString(message.pageToken))
                                         return "pageToken: string expected";
                                 if (message.instancePartitionDeadline != null && message.hasOwnProperty("instancePartitionDeadline")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.instancePartitionDeadline);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.instancePartitionDeadline, long + 1);
                                     if (error)
                                         return "instancePartitionDeadline." + error;
                                 }
@@ -49068,9 +50979,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest} ListInstancePartitionOperationsRequest
                              */
-                            ListInstancePartitionOperationsRequest.fromObject = function fromObject(object) {
+                            ListInstancePartitionOperationsRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest();
                                 if (object.parent != null)
                                     message.parent = String(object.parent);
@@ -49083,7 +50998,7 @@
                                 if (object.instancePartitionDeadline != null) {
                                     if (typeof object.instancePartitionDeadline !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest.instancePartitionDeadline: object expected");
-                                    message.instancePartitionDeadline = $root.google.protobuf.Timestamp.fromObject(object.instancePartitionDeadline);
+                                    message.instancePartitionDeadline = $root.google.protobuf.Timestamp.fromObject(object.instancePartitionDeadline, long + 1);
                                 }
                                 return message;
                             };
@@ -49174,7 +51089,7 @@
                                 this.unreachableInstancePartitions = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -49261,9 +51176,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ListInstancePartitionOperationsResponse.decode = function decode(reader, length, error) {
+                            ListInstancePartitionOperationsResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -49273,7 +51192,7 @@
                                     case 1: {
                                             if (!(message.operations && message.operations.length))
                                                 message.operations = [];
-                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                            message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
@@ -49287,7 +51206,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -49318,14 +51237,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ListInstancePartitionOperationsResponse.verify = function verify(message) {
+                            ListInstancePartitionOperationsResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.operations != null && message.hasOwnProperty("operations")) {
                                     if (!Array.isArray(message.operations))
                                         return "operations: array expected";
                                     for (var i = 0; i < message.operations.length; ++i) {
-                                        var error = $root.google.longrunning.Operation.verify(message.operations[i]);
+                                        var error = $root.google.longrunning.Operation.verify(message.operations[i], long + 1);
                                         if (error)
                                             return "operations." + error;
                                     }
@@ -49351,9 +51274,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse} ListInstancePartitionOperationsResponse
                              */
-                            ListInstancePartitionOperationsResponse.fromObject = function fromObject(object) {
+                            ListInstancePartitionOperationsResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse();
                                 if (object.operations) {
                                     if (!Array.isArray(object.operations))
@@ -49362,7 +51289,7 @@
                                     for (var i = 0; i < object.operations.length; ++i) {
                                         if (typeof object.operations[i] !== "object")
                                             throw TypeError(".google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse.operations: object expected");
-                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i]);
+                                        message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i], long + 1);
                                     }
                                 }
                                 if (object.nextPageToken != null)
@@ -49461,7 +51388,7 @@
                             function MoveInstanceRequest(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -49536,9 +51463,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            MoveInstanceRequest.decode = function decode(reader, length, error) {
+                            MoveInstanceRequest.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.MoveInstanceRequest();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -49554,7 +51485,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -49585,9 +51516,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            MoveInstanceRequest.verify = function verify(message) {
+                            MoveInstanceRequest.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -49605,9 +51540,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.MoveInstanceRequest} MoveInstanceRequest
                              */
-                            MoveInstanceRequest.fromObject = function fromObject(object) {
+                            MoveInstanceRequest.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.MoveInstanceRequest)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.MoveInstanceRequest();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -49688,7 +51627,7 @@
                             function MoveInstanceResponse(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -49743,9 +51682,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            MoveInstanceResponse.decode = function decode(reader, length, error) {
+                            MoveInstanceResponse.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.MoveInstanceResponse();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -49753,7 +51696,7 @@
                                         break;
                                     switch (tag >>> 3) {
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -49784,9 +51727,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            MoveInstanceResponse.verify = function verify(message) {
+                            MoveInstanceResponse.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 return null;
                             };
     
@@ -49798,9 +51745,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.MoveInstanceResponse} MoveInstanceResponse
                              */
-                            MoveInstanceResponse.fromObject = function fromObject(object) {
+                            MoveInstanceResponse.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.MoveInstanceResponse)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 return new $root.google.spanner.admin.instance.v1.MoveInstanceResponse();
                             };
     
@@ -49868,7 +51819,7 @@
                             function MoveInstanceMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -49953,9 +51904,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            MoveInstanceMetadata.decode = function decode(reader, length, error) {
+                            MoveInstanceMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.admin.instance.v1.MoveInstanceMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -49967,15 +51922,15 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.decode(reader, reader.uint32());
+                                            message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                            message.cancelTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -50006,19 +51961,23 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            MoveInstanceMetadata.verify = function verify(message) {
+                            MoveInstanceMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.targetConfig != null && message.hasOwnProperty("targetConfig"))
                                     if (!$util.isString(message.targetConfig))
                                         return "targetConfig: string expected";
                                 if (message.progress != null && message.hasOwnProperty("progress")) {
-                                    var error = $root.google.spanner.admin.instance.v1.OperationProgress.verify(message.progress);
+                                    var error = $root.google.spanner.admin.instance.v1.OperationProgress.verify(message.progress, long + 1);
                                     if (error)
                                         return "progress." + error;
                                 }
                                 if (message.cancelTime != null && message.hasOwnProperty("cancelTime")) {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.cancelTime, long + 1);
                                     if (error)
                                         return "cancelTime." + error;
                                 }
@@ -50033,21 +51992,25 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.admin.instance.v1.MoveInstanceMetadata} MoveInstanceMetadata
                              */
-                            MoveInstanceMetadata.fromObject = function fromObject(object) {
+                            MoveInstanceMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.admin.instance.v1.MoveInstanceMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.admin.instance.v1.MoveInstanceMetadata();
                                 if (object.targetConfig != null)
                                     message.targetConfig = String(object.targetConfig);
                                 if (object.progress != null) {
                                     if (typeof object.progress !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.MoveInstanceMetadata.progress: object expected");
-                                    message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.fromObject(object.progress);
+                                    message.progress = $root.google.spanner.admin.instance.v1.OperationProgress.fromObject(object.progress, long + 1);
                                 }
                                 if (object.cancelTime != null) {
                                     if (typeof object.cancelTime !== "object")
                                         throw TypeError(".google.spanner.admin.instance.v1.MoveInstanceMetadata.cancelTime: object expected");
-                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime);
+                                    message.cancelTime = $root.google.protobuf.Timestamp.fromObject(object.cancelTime, long + 1);
                                 }
                                 return message;
                             };
@@ -50224,7 +52187,7 @@
                         function SpannerAsyncActionRequest(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -50299,9 +52262,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        SpannerAsyncActionRequest.decode = function decode(reader, length, error) {
+                        SpannerAsyncActionRequest.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.SpannerAsyncActionRequest();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -50313,11 +52280,11 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.action = $root.google.spanner.executor.v1.SpannerAction.decode(reader, reader.uint32());
+                                        message.action = $root.google.spanner.executor.v1.SpannerAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -50348,14 +52315,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        SpannerAsyncActionRequest.verify = function verify(message) {
+                        SpannerAsyncActionRequest.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.actionId != null && message.hasOwnProperty("actionId"))
                                 if (!$util.isInteger(message.actionId))
                                     return "actionId: integer expected";
                             if (message.action != null && message.hasOwnProperty("action")) {
-                                var error = $root.google.spanner.executor.v1.SpannerAction.verify(message.action);
+                                var error = $root.google.spanner.executor.v1.SpannerAction.verify(message.action, long + 1);
                                 if (error)
                                     return "action." + error;
                             }
@@ -50370,16 +52341,20 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.SpannerAsyncActionRequest} SpannerAsyncActionRequest
                          */
-                        SpannerAsyncActionRequest.fromObject = function fromObject(object) {
+                        SpannerAsyncActionRequest.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.SpannerAsyncActionRequest)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.SpannerAsyncActionRequest();
                             if (object.actionId != null)
                                 message.actionId = object.actionId | 0;
                             if (object.action != null) {
                                 if (typeof object.action !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAsyncActionRequest.action: object expected");
-                                message.action = $root.google.spanner.executor.v1.SpannerAction.fromObject(object.action);
+                                message.action = $root.google.spanner.executor.v1.SpannerAction.fromObject(object.action, long + 1);
                             }
                             return message;
                         };
@@ -50458,7 +52433,7 @@
                         function SpannerAsyncActionResponse(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -50533,9 +52508,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        SpannerAsyncActionResponse.decode = function decode(reader, length, error) {
+                        SpannerAsyncActionResponse.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.SpannerAsyncActionResponse();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -50547,11 +52526,11 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.outcome = $root.google.spanner.executor.v1.SpannerActionOutcome.decode(reader, reader.uint32());
+                                        message.outcome = $root.google.spanner.executor.v1.SpannerActionOutcome.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -50582,14 +52561,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        SpannerAsyncActionResponse.verify = function verify(message) {
+                        SpannerAsyncActionResponse.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.actionId != null && message.hasOwnProperty("actionId"))
                                 if (!$util.isInteger(message.actionId))
                                     return "actionId: integer expected";
                             if (message.outcome != null && message.hasOwnProperty("outcome")) {
-                                var error = $root.google.spanner.executor.v1.SpannerActionOutcome.verify(message.outcome);
+                                var error = $root.google.spanner.executor.v1.SpannerActionOutcome.verify(message.outcome, long + 1);
                                 if (error)
                                     return "outcome." + error;
                             }
@@ -50604,16 +52587,20 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.SpannerAsyncActionResponse} SpannerAsyncActionResponse
                          */
-                        SpannerAsyncActionResponse.fromObject = function fromObject(object) {
+                        SpannerAsyncActionResponse.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.SpannerAsyncActionResponse)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.SpannerAsyncActionResponse();
                             if (object.actionId != null)
                                 message.actionId = object.actionId | 0;
                             if (object.outcome != null) {
                                 if (typeof object.outcome !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAsyncActionResponse.outcome: object expected");
-                                message.outcome = $root.google.spanner.executor.v1.SpannerActionOutcome.fromObject(object.outcome);
+                                message.outcome = $root.google.spanner.executor.v1.SpannerActionOutcome.fromObject(object.outcome, long + 1);
                             }
                             return message;
                         };
@@ -50710,7 +52697,7 @@
                         function SpannerAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -50979,9 +52966,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        SpannerAction.decode = function decode(reader, length, error) {
+                        SpannerAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.SpannerAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -50993,83 +52984,83 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.spannerOptions = $root.google.spanner.executor.v1.SpannerOptions.decode(reader, reader.uint32());
+                                        message.spannerOptions = $root.google.spanner.executor.v1.SpannerOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 10: {
-                                        message.start = $root.google.spanner.executor.v1.StartTransactionAction.decode(reader, reader.uint32());
+                                        message.start = $root.google.spanner.executor.v1.StartTransactionAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 11: {
-                                        message.finish = $root.google.spanner.executor.v1.FinishTransactionAction.decode(reader, reader.uint32());
+                                        message.finish = $root.google.spanner.executor.v1.FinishTransactionAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 20: {
-                                        message.read = $root.google.spanner.executor.v1.ReadAction.decode(reader, reader.uint32());
+                                        message.read = $root.google.spanner.executor.v1.ReadAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 21: {
-                                        message.query = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32());
+                                        message.query = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 22: {
-                                        message.mutation = $root.google.spanner.executor.v1.MutationAction.decode(reader, reader.uint32());
+                                        message.mutation = $root.google.spanner.executor.v1.MutationAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 23: {
-                                        message.dml = $root.google.spanner.executor.v1.DmlAction.decode(reader, reader.uint32());
+                                        message.dml = $root.google.spanner.executor.v1.DmlAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 24: {
-                                        message.batchDml = $root.google.spanner.executor.v1.BatchDmlAction.decode(reader, reader.uint32());
+                                        message.batchDml = $root.google.spanner.executor.v1.BatchDmlAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 25: {
-                                        message.write = $root.google.spanner.executor.v1.WriteMutationsAction.decode(reader, reader.uint32());
+                                        message.write = $root.google.spanner.executor.v1.WriteMutationsAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 27: {
-                                        message.partitionedUpdate = $root.google.spanner.executor.v1.PartitionedUpdateAction.decode(reader, reader.uint32());
+                                        message.partitionedUpdate = $root.google.spanner.executor.v1.PartitionedUpdateAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 30: {
-                                        message.admin = $root.google.spanner.executor.v1.AdminAction.decode(reader, reader.uint32());
+                                        message.admin = $root.google.spanner.executor.v1.AdminAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 40: {
-                                        message.startBatchTxn = $root.google.spanner.executor.v1.StartBatchTransactionAction.decode(reader, reader.uint32());
+                                        message.startBatchTxn = $root.google.spanner.executor.v1.StartBatchTransactionAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 41: {
-                                        message.closeBatchTxn = $root.google.spanner.executor.v1.CloseBatchTransactionAction.decode(reader, reader.uint32());
+                                        message.closeBatchTxn = $root.google.spanner.executor.v1.CloseBatchTransactionAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 42: {
-                                        message.generateDbPartitionsRead = $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction.decode(reader, reader.uint32());
+                                        message.generateDbPartitionsRead = $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 43: {
-                                        message.generateDbPartitionsQuery = $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction.decode(reader, reader.uint32());
+                                        message.generateDbPartitionsQuery = $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 44: {
-                                        message.executePartition = $root.google.spanner.executor.v1.ExecutePartitionAction.decode(reader, reader.uint32());
+                                        message.executePartition = $root.google.spanner.executor.v1.ExecutePartitionAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 50: {
-                                        message.executeChangeStreamQuery = $root.google.spanner.executor.v1.ExecuteChangeStreamQuery.decode(reader, reader.uint32());
+                                        message.executeChangeStreamQuery = $root.google.spanner.executor.v1.ExecuteChangeStreamQuery.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 51: {
-                                        message.queryCancellation = $root.google.spanner.executor.v1.QueryCancellationAction.decode(reader, reader.uint32());
+                                        message.queryCancellation = $root.google.spanner.executor.v1.QueryCancellationAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 52: {
-                                        message.adaptMessage = $root.google.spanner.executor.v1.AdaptMessageAction.decode(reader, reader.uint32());
+                                        message.adaptMessage = $root.google.spanner.executor.v1.AdaptMessageAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -51100,22 +53091,26 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        SpannerAction.verify = function verify(message) {
+                        SpannerAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.databasePath != null && message.hasOwnProperty("databasePath"))
                                 if (!$util.isString(message.databasePath))
                                     return "databasePath: string expected";
                             if (message.spannerOptions != null && message.hasOwnProperty("spannerOptions")) {
-                                var error = $root.google.spanner.executor.v1.SpannerOptions.verify(message.spannerOptions);
+                                var error = $root.google.spanner.executor.v1.SpannerOptions.verify(message.spannerOptions, long + 1);
                                 if (error)
                                     return "spannerOptions." + error;
                             }
                             if (message.start != null && message.hasOwnProperty("start")) {
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.StartTransactionAction.verify(message.start);
+                                    var error = $root.google.spanner.executor.v1.StartTransactionAction.verify(message.start, long + 1);
                                     if (error)
                                         return "start." + error;
                                 }
@@ -51125,7 +53120,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.FinishTransactionAction.verify(message.finish);
+                                    var error = $root.google.spanner.executor.v1.FinishTransactionAction.verify(message.finish, long + 1);
                                     if (error)
                                         return "finish." + error;
                                 }
@@ -51135,7 +53130,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ReadAction.verify(message.read);
+                                    var error = $root.google.spanner.executor.v1.ReadAction.verify(message.read, long + 1);
                                     if (error)
                                         return "read." + error;
                                 }
@@ -51145,7 +53140,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.QueryAction.verify(message.query);
+                                    var error = $root.google.spanner.executor.v1.QueryAction.verify(message.query, long + 1);
                                     if (error)
                                         return "query." + error;
                                 }
@@ -51155,7 +53150,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.MutationAction.verify(message.mutation);
+                                    var error = $root.google.spanner.executor.v1.MutationAction.verify(message.mutation, long + 1);
                                     if (error)
                                         return "mutation." + error;
                                 }
@@ -51165,7 +53160,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.DmlAction.verify(message.dml);
+                                    var error = $root.google.spanner.executor.v1.DmlAction.verify(message.dml, long + 1);
                                     if (error)
                                         return "dml." + error;
                                 }
@@ -51175,7 +53170,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.BatchDmlAction.verify(message.batchDml);
+                                    var error = $root.google.spanner.executor.v1.BatchDmlAction.verify(message.batchDml, long + 1);
                                     if (error)
                                         return "batchDml." + error;
                                 }
@@ -51185,7 +53180,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.WriteMutationsAction.verify(message.write);
+                                    var error = $root.google.spanner.executor.v1.WriteMutationsAction.verify(message.write, long + 1);
                                     if (error)
                                         return "write." + error;
                                 }
@@ -51195,7 +53190,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.PartitionedUpdateAction.verify(message.partitionedUpdate);
+                                    var error = $root.google.spanner.executor.v1.PartitionedUpdateAction.verify(message.partitionedUpdate, long + 1);
                                     if (error)
                                         return "partitionedUpdate." + error;
                                 }
@@ -51205,7 +53200,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.AdminAction.verify(message.admin);
+                                    var error = $root.google.spanner.executor.v1.AdminAction.verify(message.admin, long + 1);
                                     if (error)
                                         return "admin." + error;
                                 }
@@ -51215,7 +53210,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.StartBatchTransactionAction.verify(message.startBatchTxn);
+                                    var error = $root.google.spanner.executor.v1.StartBatchTransactionAction.verify(message.startBatchTxn, long + 1);
                                     if (error)
                                         return "startBatchTxn." + error;
                                 }
@@ -51225,7 +53220,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.CloseBatchTransactionAction.verify(message.closeBatchTxn);
+                                    var error = $root.google.spanner.executor.v1.CloseBatchTransactionAction.verify(message.closeBatchTxn, long + 1);
                                     if (error)
                                         return "closeBatchTxn." + error;
                                 }
@@ -51235,7 +53230,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction.verify(message.generateDbPartitionsRead);
+                                    var error = $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction.verify(message.generateDbPartitionsRead, long + 1);
                                     if (error)
                                         return "generateDbPartitionsRead." + error;
                                 }
@@ -51245,7 +53240,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction.verify(message.generateDbPartitionsQuery);
+                                    var error = $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction.verify(message.generateDbPartitionsQuery, long + 1);
                                     if (error)
                                         return "generateDbPartitionsQuery." + error;
                                 }
@@ -51255,7 +53250,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ExecutePartitionAction.verify(message.executePartition);
+                                    var error = $root.google.spanner.executor.v1.ExecutePartitionAction.verify(message.executePartition, long + 1);
                                     if (error)
                                         return "executePartition." + error;
                                 }
@@ -51265,7 +53260,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ExecuteChangeStreamQuery.verify(message.executeChangeStreamQuery);
+                                    var error = $root.google.spanner.executor.v1.ExecuteChangeStreamQuery.verify(message.executeChangeStreamQuery, long + 1);
                                     if (error)
                                         return "executeChangeStreamQuery." + error;
                                 }
@@ -51275,7 +53270,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.QueryCancellationAction.verify(message.queryCancellation);
+                                    var error = $root.google.spanner.executor.v1.QueryCancellationAction.verify(message.queryCancellation, long + 1);
                                     if (error)
                                         return "queryCancellation." + error;
                                 }
@@ -51285,7 +53280,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.AdaptMessageAction.verify(message.adaptMessage);
+                                    var error = $root.google.spanner.executor.v1.AdaptMessageAction.verify(message.adaptMessage, long + 1);
                                     if (error)
                                         return "adaptMessage." + error;
                                 }
@@ -51301,106 +53296,110 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.SpannerAction} SpannerAction
                          */
-                        SpannerAction.fromObject = function fromObject(object) {
+                        SpannerAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.SpannerAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.SpannerAction();
                             if (object.databasePath != null)
                                 message.databasePath = String(object.databasePath);
                             if (object.spannerOptions != null) {
                                 if (typeof object.spannerOptions !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.spannerOptions: object expected");
-                                message.spannerOptions = $root.google.spanner.executor.v1.SpannerOptions.fromObject(object.spannerOptions);
+                                message.spannerOptions = $root.google.spanner.executor.v1.SpannerOptions.fromObject(object.spannerOptions, long + 1);
                             }
                             if (object.start != null) {
                                 if (typeof object.start !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.start: object expected");
-                                message.start = $root.google.spanner.executor.v1.StartTransactionAction.fromObject(object.start);
+                                message.start = $root.google.spanner.executor.v1.StartTransactionAction.fromObject(object.start, long + 1);
                             }
                             if (object.finish != null) {
                                 if (typeof object.finish !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.finish: object expected");
-                                message.finish = $root.google.spanner.executor.v1.FinishTransactionAction.fromObject(object.finish);
+                                message.finish = $root.google.spanner.executor.v1.FinishTransactionAction.fromObject(object.finish, long + 1);
                             }
                             if (object.read != null) {
                                 if (typeof object.read !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.read: object expected");
-                                message.read = $root.google.spanner.executor.v1.ReadAction.fromObject(object.read);
+                                message.read = $root.google.spanner.executor.v1.ReadAction.fromObject(object.read, long + 1);
                             }
                             if (object.query != null) {
                                 if (typeof object.query !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.query: object expected");
-                                message.query = $root.google.spanner.executor.v1.QueryAction.fromObject(object.query);
+                                message.query = $root.google.spanner.executor.v1.QueryAction.fromObject(object.query, long + 1);
                             }
                             if (object.mutation != null) {
                                 if (typeof object.mutation !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.mutation: object expected");
-                                message.mutation = $root.google.spanner.executor.v1.MutationAction.fromObject(object.mutation);
+                                message.mutation = $root.google.spanner.executor.v1.MutationAction.fromObject(object.mutation, long + 1);
                             }
                             if (object.dml != null) {
                                 if (typeof object.dml !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.dml: object expected");
-                                message.dml = $root.google.spanner.executor.v1.DmlAction.fromObject(object.dml);
+                                message.dml = $root.google.spanner.executor.v1.DmlAction.fromObject(object.dml, long + 1);
                             }
                             if (object.batchDml != null) {
                                 if (typeof object.batchDml !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.batchDml: object expected");
-                                message.batchDml = $root.google.spanner.executor.v1.BatchDmlAction.fromObject(object.batchDml);
+                                message.batchDml = $root.google.spanner.executor.v1.BatchDmlAction.fromObject(object.batchDml, long + 1);
                             }
                             if (object.write != null) {
                                 if (typeof object.write !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.write: object expected");
-                                message.write = $root.google.spanner.executor.v1.WriteMutationsAction.fromObject(object.write);
+                                message.write = $root.google.spanner.executor.v1.WriteMutationsAction.fromObject(object.write, long + 1);
                             }
                             if (object.partitionedUpdate != null) {
                                 if (typeof object.partitionedUpdate !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.partitionedUpdate: object expected");
-                                message.partitionedUpdate = $root.google.spanner.executor.v1.PartitionedUpdateAction.fromObject(object.partitionedUpdate);
+                                message.partitionedUpdate = $root.google.spanner.executor.v1.PartitionedUpdateAction.fromObject(object.partitionedUpdate, long + 1);
                             }
                             if (object.admin != null) {
                                 if (typeof object.admin !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.admin: object expected");
-                                message.admin = $root.google.spanner.executor.v1.AdminAction.fromObject(object.admin);
+                                message.admin = $root.google.spanner.executor.v1.AdminAction.fromObject(object.admin, long + 1);
                             }
                             if (object.startBatchTxn != null) {
                                 if (typeof object.startBatchTxn !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.startBatchTxn: object expected");
-                                message.startBatchTxn = $root.google.spanner.executor.v1.StartBatchTransactionAction.fromObject(object.startBatchTxn);
+                                message.startBatchTxn = $root.google.spanner.executor.v1.StartBatchTransactionAction.fromObject(object.startBatchTxn, long + 1);
                             }
                             if (object.closeBatchTxn != null) {
                                 if (typeof object.closeBatchTxn !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.closeBatchTxn: object expected");
-                                message.closeBatchTxn = $root.google.spanner.executor.v1.CloseBatchTransactionAction.fromObject(object.closeBatchTxn);
+                                message.closeBatchTxn = $root.google.spanner.executor.v1.CloseBatchTransactionAction.fromObject(object.closeBatchTxn, long + 1);
                             }
                             if (object.generateDbPartitionsRead != null) {
                                 if (typeof object.generateDbPartitionsRead !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.generateDbPartitionsRead: object expected");
-                                message.generateDbPartitionsRead = $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction.fromObject(object.generateDbPartitionsRead);
+                                message.generateDbPartitionsRead = $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction.fromObject(object.generateDbPartitionsRead, long + 1);
                             }
                             if (object.generateDbPartitionsQuery != null) {
                                 if (typeof object.generateDbPartitionsQuery !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.generateDbPartitionsQuery: object expected");
-                                message.generateDbPartitionsQuery = $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction.fromObject(object.generateDbPartitionsQuery);
+                                message.generateDbPartitionsQuery = $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction.fromObject(object.generateDbPartitionsQuery, long + 1);
                             }
                             if (object.executePartition != null) {
                                 if (typeof object.executePartition !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.executePartition: object expected");
-                                message.executePartition = $root.google.spanner.executor.v1.ExecutePartitionAction.fromObject(object.executePartition);
+                                message.executePartition = $root.google.spanner.executor.v1.ExecutePartitionAction.fromObject(object.executePartition, long + 1);
                             }
                             if (object.executeChangeStreamQuery != null) {
                                 if (typeof object.executeChangeStreamQuery !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.executeChangeStreamQuery: object expected");
-                                message.executeChangeStreamQuery = $root.google.spanner.executor.v1.ExecuteChangeStreamQuery.fromObject(object.executeChangeStreamQuery);
+                                message.executeChangeStreamQuery = $root.google.spanner.executor.v1.ExecuteChangeStreamQuery.fromObject(object.executeChangeStreamQuery, long + 1);
                             }
                             if (object.queryCancellation != null) {
                                 if (typeof object.queryCancellation !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.queryCancellation: object expected");
-                                message.queryCancellation = $root.google.spanner.executor.v1.QueryCancellationAction.fromObject(object.queryCancellation);
+                                message.queryCancellation = $root.google.spanner.executor.v1.QueryCancellationAction.fromObject(object.queryCancellation, long + 1);
                             }
                             if (object.adaptMessage != null) {
                                 if (typeof object.adaptMessage !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerAction.adaptMessage: object expected");
-                                message.adaptMessage = $root.google.spanner.executor.v1.AdaptMessageAction.fromObject(object.adaptMessage);
+                                message.adaptMessage = $root.google.spanner.executor.v1.AdaptMessageAction.fromObject(object.adaptMessage, long + 1);
                             }
                             return message;
                         };
@@ -51573,7 +53572,7 @@
                             this.column = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -51688,9 +53687,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ReadAction.decode = function decode(reader, length, error) {
+                        ReadAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ReadAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -51712,7 +53715,7 @@
                                         break;
                                     }
                                 case 4: {
-                                        message.keys = $root.google.spanner.executor.v1.KeySet.decode(reader, reader.uint32());
+                                        message.keys = $root.google.spanner.executor.v1.KeySet.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 5: {
@@ -51720,7 +53723,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -51751,9 +53754,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ReadAction.verify = function verify(message) {
+                        ReadAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.table != null && message.hasOwnProperty("table"))
                                 if (!$util.isString(message.table))
@@ -51771,7 +53778,7 @@
                                         return "column: string[] expected";
                             }
                             if (message.keys != null && message.hasOwnProperty("keys")) {
-                                var error = $root.google.spanner.executor.v1.KeySet.verify(message.keys);
+                                var error = $root.google.spanner.executor.v1.KeySet.verify(message.keys, long + 1);
                                 if (error)
                                     return "keys." + error;
                             }
@@ -51789,9 +53796,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ReadAction} ReadAction
                          */
-                        ReadAction.fromObject = function fromObject(object) {
+                        ReadAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ReadAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ReadAction();
                             if (object.table != null)
                                 message.table = String(object.table);
@@ -51807,7 +53818,7 @@
                             if (object.keys != null) {
                                 if (typeof object.keys !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ReadAction.keys: object expected");
-                                message.keys = $root.google.spanner.executor.v1.KeySet.fromObject(object.keys);
+                                message.keys = $root.google.spanner.executor.v1.KeySet.fromObject(object.keys, long + 1);
                             }
                             if (object.limit != null)
                                 message.limit = object.limit | 0;
@@ -51904,7 +53915,7 @@
                             this.params = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -51980,9 +53991,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        QueryAction.decode = function decode(reader, length, error) {
+                        QueryAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.QueryAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -51996,11 +54011,11 @@
                                 case 2: {
                                         if (!(message.params && message.params.length))
                                             message.params = [];
-                                        message.params.push($root.google.spanner.executor.v1.QueryAction.Parameter.decode(reader, reader.uint32()));
+                                        message.params.push($root.google.spanner.executor.v1.QueryAction.Parameter.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -52031,9 +54046,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        QueryAction.verify = function verify(message) {
+                        QueryAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.sql != null && message.hasOwnProperty("sql"))
                                 if (!$util.isString(message.sql))
                                     return "sql: string expected";
@@ -52041,7 +54060,7 @@
                                 if (!Array.isArray(message.params))
                                     return "params: array expected";
                                 for (var i = 0; i < message.params.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.QueryAction.Parameter.verify(message.params[i]);
+                                    var error = $root.google.spanner.executor.v1.QueryAction.Parameter.verify(message.params[i], long + 1);
                                     if (error)
                                         return "params." + error;
                                 }
@@ -52057,9 +54076,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.QueryAction} QueryAction
                          */
-                        QueryAction.fromObject = function fromObject(object) {
+                        QueryAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.QueryAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.QueryAction();
                             if (object.sql != null)
                                 message.sql = String(object.sql);
@@ -52070,7 +54093,7 @@
                                 for (var i = 0; i < object.params.length; ++i) {
                                     if (typeof object.params[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.QueryAction.params: object expected");
-                                    message.params[i] = $root.google.spanner.executor.v1.QueryAction.Parameter.fromObject(object.params[i]);
+                                    message.params[i] = $root.google.spanner.executor.v1.QueryAction.Parameter.fromObject(object.params[i], long + 1);
                                 }
                             }
                             return message;
@@ -52151,7 +54174,7 @@
                             function Parameter(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -52236,9 +54259,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            Parameter.decode = function decode(reader, length, error) {
+                            Parameter.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.QueryAction.Parameter();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -52250,15 +54277,15 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                            message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.value = $root.google.spanner.executor.v1.Value.decode(reader, reader.uint32());
+                                            message.value = $root.google.spanner.executor.v1.Value.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -52289,19 +54316,23 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            Parameter.verify = function verify(message) {
+                            Parameter.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
                                 if (message.type != null && message.hasOwnProperty("type")) {
-                                    var error = $root.google.spanner.v1.Type.verify(message.type);
+                                    var error = $root.google.spanner.v1.Type.verify(message.type, long + 1);
                                     if (error)
                                         return "type." + error;
                                 }
                                 if (message.value != null && message.hasOwnProperty("value")) {
-                                    var error = $root.google.spanner.executor.v1.Value.verify(message.value);
+                                    var error = $root.google.spanner.executor.v1.Value.verify(message.value, long + 1);
                                     if (error)
                                         return "value." + error;
                                 }
@@ -52316,21 +54347,25 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.QueryAction.Parameter} Parameter
                              */
-                            Parameter.fromObject = function fromObject(object) {
+                            Parameter.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.QueryAction.Parameter)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.QueryAction.Parameter();
                                 if (object.name != null)
                                     message.name = String(object.name);
                                 if (object.type != null) {
                                     if (typeof object.type !== "object")
                                         throw TypeError(".google.spanner.executor.v1.QueryAction.Parameter.type: object expected");
-                                    message.type = $root.google.spanner.v1.Type.fromObject(object.type);
+                                    message.type = $root.google.spanner.v1.Type.fromObject(object.type, long + 1);
                                 }
                                 if (object.value != null) {
                                     if (typeof object.value !== "object")
                                         throw TypeError(".google.spanner.executor.v1.QueryAction.Parameter.value: object expected");
-                                    message.value = $root.google.spanner.executor.v1.Value.fromObject(object.value);
+                                    message.value = $root.google.spanner.executor.v1.Value.fromObject(object.value, long + 1);
                                 }
                                 return message;
                             };
@@ -52416,7 +54451,7 @@
                         function DmlAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -52516,9 +54551,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        DmlAction.decode = function decode(reader, length, error) {
+                        DmlAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DmlAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -52526,7 +54565,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.update = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32());
+                                        message.update = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -52538,7 +54577,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -52569,12 +54608,16 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        DmlAction.verify = function verify(message) {
+                        DmlAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.update != null && message.hasOwnProperty("update")) {
-                                var error = $root.google.spanner.executor.v1.QueryAction.verify(message.update);
+                                var error = $root.google.spanner.executor.v1.QueryAction.verify(message.update, long + 1);
                                 if (error)
                                     return "update." + error;
                             }
@@ -52599,14 +54642,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.DmlAction} DmlAction
                          */
-                        DmlAction.fromObject = function fromObject(object) {
+                        DmlAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.DmlAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.DmlAction();
                             if (object.update != null) {
                                 if (typeof object.update !== "object")
                                     throw TypeError(".google.spanner.executor.v1.DmlAction.update: object expected");
-                                message.update = $root.google.spanner.executor.v1.QueryAction.fromObject(object.update);
+                                message.update = $root.google.spanner.executor.v1.QueryAction.fromObject(object.update, long + 1);
                             }
                             if (object.autocommitIfSupported != null)
                                 message.autocommitIfSupported = Boolean(object.autocommitIfSupported);
@@ -52696,7 +54743,7 @@
                             this.updates = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -52781,9 +54828,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        BatchDmlAction.decode = function decode(reader, length, error) {
+                        BatchDmlAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.BatchDmlAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -52793,7 +54844,7 @@
                                 case 1: {
                                         if (!(message.updates && message.updates.length))
                                             message.updates = [];
-                                        message.updates.push($root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32()));
+                                        message.updates.push($root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
@@ -52801,7 +54852,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -52832,15 +54883,19 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        BatchDmlAction.verify = function verify(message) {
+                        BatchDmlAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.updates != null && message.hasOwnProperty("updates")) {
                                 if (!Array.isArray(message.updates))
                                     return "updates: array expected";
                                 for (var i = 0; i < message.updates.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.QueryAction.verify(message.updates[i]);
+                                    var error = $root.google.spanner.executor.v1.QueryAction.verify(message.updates[i], long + 1);
                                     if (error)
                                         return "updates." + error;
                                 }
@@ -52861,9 +54916,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.BatchDmlAction} BatchDmlAction
                          */
-                        BatchDmlAction.fromObject = function fromObject(object) {
+                        BatchDmlAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.BatchDmlAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.BatchDmlAction();
                             if (object.updates) {
                                 if (!Array.isArray(object.updates))
@@ -52872,7 +54931,7 @@
                                 for (var i = 0; i < object.updates.length; ++i) {
                                     if (typeof object.updates[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.BatchDmlAction.updates: object expected");
-                                    message.updates[i] = $root.google.spanner.executor.v1.QueryAction.fromObject(object.updates[i]);
+                                    message.updates[i] = $root.google.spanner.executor.v1.QueryAction.fromObject(object.updates[i], long + 1);
                                 }
                             }
                             if (object.lastStatements != null)
@@ -52968,7 +55027,7 @@
                         function Value(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -53163,9 +55222,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Value.decode = function decode(reader, length, error) {
+                        Value.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.Value();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -53197,11 +55260,11 @@
                                         break;
                                     }
                                 case 7: {
-                                        message.structValue = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32());
+                                        message.structValue = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 8: {
-                                        message.timestampValue = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.timestampValue = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 9: {
@@ -53213,15 +55276,15 @@
                                         break;
                                     }
                                 case 11: {
-                                        message.arrayValue = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32());
+                                        message.arrayValue = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 12: {
-                                        message.arrayType = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                        message.arrayType = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -53252,9 +55315,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Value.verify = function verify(message) {
+                        Value.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.isNull != null && message.hasOwnProperty("isNull")) {
                                 properties.valueType = 1;
@@ -53301,7 +55368,7 @@
                                     return "valueType: multiple values";
                                 properties.valueType = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.structValue);
+                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.structValue, long + 1);
                                     if (error)
                                         return "structValue." + error;
                                 }
@@ -53311,7 +55378,7 @@
                                     return "valueType: multiple values";
                                 properties.valueType = 1;
                                 {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.timestampValue);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.timestampValue, long + 1);
                                     if (error)
                                         return "timestampValue." + error;
                                 }
@@ -53335,7 +55402,7 @@
                                     return "valueType: multiple values";
                                 properties.valueType = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.arrayValue);
+                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.arrayValue, long + 1);
                                     if (error)
                                         return "arrayValue." + error;
                                 }
@@ -53343,7 +55410,7 @@
                             if (message.arrayType != null && message.hasOwnProperty("arrayType")) {
                                 properties._arrayType = 1;
                                 {
-                                    var error = $root.google.spanner.v1.Type.verify(message.arrayType);
+                                    var error = $root.google.spanner.v1.Type.verify(message.arrayType, long + 1);
                                     if (error)
                                         return "arrayType." + error;
                                 }
@@ -53359,9 +55426,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.Value} Value
                          */
-                        Value.fromObject = function fromObject(object) {
+                        Value.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.Value)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.Value();
                             if (object.isNull != null)
                                 message.isNull = Boolean(object.isNull);
@@ -53388,12 +55459,12 @@
                             if (object.structValue != null) {
                                 if (typeof object.structValue !== "object")
                                     throw TypeError(".google.spanner.executor.v1.Value.structValue: object expected");
-                                message.structValue = $root.google.spanner.executor.v1.ValueList.fromObject(object.structValue);
+                                message.structValue = $root.google.spanner.executor.v1.ValueList.fromObject(object.structValue, long + 1);
                             }
                             if (object.timestampValue != null) {
                                 if (typeof object.timestampValue !== "object")
                                     throw TypeError(".google.spanner.executor.v1.Value.timestampValue: object expected");
-                                message.timestampValue = $root.google.protobuf.Timestamp.fromObject(object.timestampValue);
+                                message.timestampValue = $root.google.protobuf.Timestamp.fromObject(object.timestampValue, long + 1);
                             }
                             if (object.dateDaysValue != null)
                                 message.dateDaysValue = object.dateDaysValue | 0;
@@ -53402,12 +55473,12 @@
                             if (object.arrayValue != null) {
                                 if (typeof object.arrayValue !== "object")
                                     throw TypeError(".google.spanner.executor.v1.Value.arrayValue: object expected");
-                                message.arrayValue = $root.google.spanner.executor.v1.ValueList.fromObject(object.arrayValue);
+                                message.arrayValue = $root.google.spanner.executor.v1.ValueList.fromObject(object.arrayValue, long + 1);
                             }
                             if (object.arrayType != null) {
                                 if (typeof object.arrayType !== "object")
                                     throw TypeError(".google.spanner.executor.v1.Value.arrayType: object expected");
-                                message.arrayType = $root.google.spanner.v1.Type.fromObject(object.arrayType);
+                                message.arrayType = $root.google.spanner.v1.Type.fromObject(object.arrayType, long + 1);
                             }
                             return message;
                         };
@@ -53542,7 +55613,7 @@
                         function KeyRange(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -53636,9 +55707,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        KeyRange.decode = function decode(reader, length, error) {
+                        KeyRange.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.KeyRange();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -53646,11 +55721,11 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.start = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32());
+                                        message.start = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
-                                        message.limit = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32());
+                                        message.limit = $root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
@@ -53658,7 +55733,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -53689,17 +55764,21 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        KeyRange.verify = function verify(message) {
+                        KeyRange.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.start != null && message.hasOwnProperty("start")) {
-                                var error = $root.google.spanner.executor.v1.ValueList.verify(message.start);
+                                var error = $root.google.spanner.executor.v1.ValueList.verify(message.start, long + 1);
                                 if (error)
                                     return "start." + error;
                             }
                             if (message.limit != null && message.hasOwnProperty("limit")) {
-                                var error = $root.google.spanner.executor.v1.ValueList.verify(message.limit);
+                                var error = $root.google.spanner.executor.v1.ValueList.verify(message.limit, long + 1);
                                 if (error)
                                     return "limit." + error;
                             }
@@ -53727,19 +55806,23 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.KeyRange} KeyRange
                          */
-                        KeyRange.fromObject = function fromObject(object) {
+                        KeyRange.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.KeyRange)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.KeyRange();
                             if (object.start != null) {
                                 if (typeof object.start !== "object")
                                     throw TypeError(".google.spanner.executor.v1.KeyRange.start: object expected");
-                                message.start = $root.google.spanner.executor.v1.ValueList.fromObject(object.start);
+                                message.start = $root.google.spanner.executor.v1.ValueList.fromObject(object.start, long + 1);
                             }
                             if (object.limit != null) {
                                 if (typeof object.limit !== "object")
                                     throw TypeError(".google.spanner.executor.v1.KeyRange.limit: object expected");
-                                message.limit = $root.google.spanner.executor.v1.ValueList.fromObject(object.limit);
+                                message.limit = $root.google.spanner.executor.v1.ValueList.fromObject(object.limit, long + 1);
                             }
                             switch (object.type) {
                             default:
@@ -53874,7 +55957,7 @@
                             this.range = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -53961,9 +56044,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        KeySet.decode = function decode(reader, length, error) {
+                        KeySet.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.KeySet();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -53973,13 +56060,13 @@
                                 case 1: {
                                         if (!(message.point && message.point.length))
                                             message.point = [];
-                                        message.point.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32()));
+                                        message.point.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
                                         if (!(message.range && message.range.length))
                                             message.range = [];
-                                        message.range.push($root.google.spanner.executor.v1.KeyRange.decode(reader, reader.uint32()));
+                                        message.range.push($root.google.spanner.executor.v1.KeyRange.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 3: {
@@ -53987,7 +56074,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -54018,14 +56105,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        KeySet.verify = function verify(message) {
+                        KeySet.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.point != null && message.hasOwnProperty("point")) {
                                 if (!Array.isArray(message.point))
                                     return "point: array expected";
                                 for (var i = 0; i < message.point.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.point[i]);
+                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.point[i], long + 1);
                                     if (error)
                                         return "point." + error;
                                 }
@@ -54034,7 +56125,7 @@
                                 if (!Array.isArray(message.range))
                                     return "range: array expected";
                                 for (var i = 0; i < message.range.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.KeyRange.verify(message.range[i]);
+                                    var error = $root.google.spanner.executor.v1.KeyRange.verify(message.range[i], long + 1);
                                     if (error)
                                         return "range." + error;
                                 }
@@ -54053,9 +56144,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.KeySet} KeySet
                          */
-                        KeySet.fromObject = function fromObject(object) {
+                        KeySet.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.KeySet)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.KeySet();
                             if (object.point) {
                                 if (!Array.isArray(object.point))
@@ -54064,7 +56159,7 @@
                                 for (var i = 0; i < object.point.length; ++i) {
                                     if (typeof object.point[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.KeySet.point: object expected");
-                                    message.point[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.point[i]);
+                                    message.point[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.point[i], long + 1);
                                 }
                             }
                             if (object.range) {
@@ -54074,7 +56169,7 @@
                                 for (var i = 0; i < object.range.length; ++i) {
                                     if (typeof object.range[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.KeySet.range: object expected");
-                                    message.range[i] = $root.google.spanner.executor.v1.KeyRange.fromObject(object.range[i]);
+                                    message.range[i] = $root.google.spanner.executor.v1.KeyRange.fromObject(object.range[i], long + 1);
                                 }
                             }
                             if (object.all != null)
@@ -54166,7 +56261,7 @@
                             this.value = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -54232,9 +56327,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ValueList.decode = function decode(reader, length, error) {
+                        ValueList.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ValueList();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -54244,11 +56343,11 @@
                                 case 1: {
                                         if (!(message.value && message.value.length))
                                             message.value = [];
-                                        message.value.push($root.google.spanner.executor.v1.Value.decode(reader, reader.uint32()));
+                                        message.value.push($root.google.spanner.executor.v1.Value.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -54279,14 +56378,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ValueList.verify = function verify(message) {
+                        ValueList.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.value != null && message.hasOwnProperty("value")) {
                                 if (!Array.isArray(message.value))
                                     return "value: array expected";
                                 for (var i = 0; i < message.value.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.Value.verify(message.value[i]);
+                                    var error = $root.google.spanner.executor.v1.Value.verify(message.value[i], long + 1);
                                     if (error)
                                         return "value." + error;
                                 }
@@ -54302,9 +56405,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ValueList} ValueList
                          */
-                        ValueList.fromObject = function fromObject(object) {
+                        ValueList.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ValueList)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ValueList();
                             if (object.value) {
                                 if (!Array.isArray(object.value))
@@ -54313,7 +56420,7 @@
                                 for (var i = 0; i < object.value.length; ++i) {
                                     if (typeof object.value[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.ValueList.value: object expected");
-                                    message.value[i] = $root.google.spanner.executor.v1.Value.fromObject(object.value[i]);
+                                    message.value[i] = $root.google.spanner.executor.v1.Value.fromObject(object.value[i], long + 1);
                                 }
                             }
                             return message;
@@ -54392,7 +56499,7 @@
                             this.mod = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -54458,9 +56565,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        MutationAction.decode = function decode(reader, length, error) {
+                        MutationAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.MutationAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -54470,11 +56581,11 @@
                                 case 1: {
                                         if (!(message.mod && message.mod.length))
                                             message.mod = [];
-                                        message.mod.push($root.google.spanner.executor.v1.MutationAction.Mod.decode(reader, reader.uint32()));
+                                        message.mod.push($root.google.spanner.executor.v1.MutationAction.Mod.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -54505,14 +56616,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        MutationAction.verify = function verify(message) {
+                        MutationAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.mod != null && message.hasOwnProperty("mod")) {
                                 if (!Array.isArray(message.mod))
                                     return "mod: array expected";
                                 for (var i = 0; i < message.mod.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.MutationAction.Mod.verify(message.mod[i]);
+                                    var error = $root.google.spanner.executor.v1.MutationAction.Mod.verify(message.mod[i], long + 1);
                                     if (error)
                                         return "mod." + error;
                                 }
@@ -54528,9 +56643,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.MutationAction} MutationAction
                          */
-                        MutationAction.fromObject = function fromObject(object) {
+                        MutationAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.MutationAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.MutationAction();
                             if (object.mod) {
                                 if (!Array.isArray(object.mod))
@@ -54539,7 +56658,7 @@
                                 for (var i = 0; i < object.mod.length; ++i) {
                                     if (typeof object.mod[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.MutationAction.mod: object expected");
-                                    message.mod[i] = $root.google.spanner.executor.v1.MutationAction.Mod.fromObject(object.mod[i]);
+                                    message.mod[i] = $root.google.spanner.executor.v1.MutationAction.Mod.fromObject(object.mod[i], long + 1);
                                 }
                             }
                             return message;
@@ -54619,7 +56738,7 @@
                                 this.values = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -54707,9 +56826,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            InsertArgs.decode = function decode(reader, length, error) {
+                            InsertArgs.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.MutationAction.InsertArgs();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -54725,17 +56848,17 @@
                                     case 2: {
                                             if (!(message.type && message.type.length))
                                                 message.type = [];
-                                            message.type.push($root.google.spanner.v1.Type.decode(reader, reader.uint32()));
+                                            message.type.push($root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 3: {
                                             if (!(message.values && message.values.length))
                                                 message.values = [];
-                                            message.values.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32()));
+                                            message.values.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -54766,9 +56889,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            InsertArgs.verify = function verify(message) {
+                            InsertArgs.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.column != null && message.hasOwnProperty("column")) {
                                     if (!Array.isArray(message.column))
                                         return "column: array expected";
@@ -54780,7 +56907,7 @@
                                     if (!Array.isArray(message.type))
                                         return "type: array expected";
                                     for (var i = 0; i < message.type.length; ++i) {
-                                        var error = $root.google.spanner.v1.Type.verify(message.type[i]);
+                                        var error = $root.google.spanner.v1.Type.verify(message.type[i], long + 1);
                                         if (error)
                                             return "type." + error;
                                     }
@@ -54789,7 +56916,7 @@
                                     if (!Array.isArray(message.values))
                                         return "values: array expected";
                                     for (var i = 0; i < message.values.length; ++i) {
-                                        var error = $root.google.spanner.executor.v1.ValueList.verify(message.values[i]);
+                                        var error = $root.google.spanner.executor.v1.ValueList.verify(message.values[i], long + 1);
                                         if (error)
                                             return "values." + error;
                                     }
@@ -54805,9 +56932,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.MutationAction.InsertArgs} InsertArgs
                              */
-                            InsertArgs.fromObject = function fromObject(object) {
+                            InsertArgs.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.MutationAction.InsertArgs)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.MutationAction.InsertArgs();
                                 if (object.column) {
                                     if (!Array.isArray(object.column))
@@ -54823,7 +56954,7 @@
                                     for (var i = 0; i < object.type.length; ++i) {
                                         if (typeof object.type[i] !== "object")
                                             throw TypeError(".google.spanner.executor.v1.MutationAction.InsertArgs.type: object expected");
-                                        message.type[i] = $root.google.spanner.v1.Type.fromObject(object.type[i]);
+                                        message.type[i] = $root.google.spanner.v1.Type.fromObject(object.type[i], long + 1);
                                     }
                                 }
                                 if (object.values) {
@@ -54833,7 +56964,7 @@
                                     for (var i = 0; i < object.values.length; ++i) {
                                         if (typeof object.values[i] !== "object")
                                             throw TypeError(".google.spanner.executor.v1.MutationAction.InsertArgs.values: object expected");
-                                        message.values[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.values[i]);
+                                        message.values[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.values[i], long + 1);
                                     }
                                 }
                                 return message;
@@ -54929,7 +57060,7 @@
                                 this.values = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -55017,9 +57148,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            UpdateArgs.decode = function decode(reader, length, error) {
+                            UpdateArgs.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.MutationAction.UpdateArgs();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -55035,17 +57170,17 @@
                                     case 2: {
                                             if (!(message.type && message.type.length))
                                                 message.type = [];
-                                            message.type.push($root.google.spanner.v1.Type.decode(reader, reader.uint32()));
+                                            message.type.push($root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 3: {
                                             if (!(message.values && message.values.length))
                                                 message.values = [];
-                                            message.values.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32()));
+                                            message.values.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -55076,9 +57211,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            UpdateArgs.verify = function verify(message) {
+                            UpdateArgs.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.column != null && message.hasOwnProperty("column")) {
                                     if (!Array.isArray(message.column))
                                         return "column: array expected";
@@ -55090,7 +57229,7 @@
                                     if (!Array.isArray(message.type))
                                         return "type: array expected";
                                     for (var i = 0; i < message.type.length; ++i) {
-                                        var error = $root.google.spanner.v1.Type.verify(message.type[i]);
+                                        var error = $root.google.spanner.v1.Type.verify(message.type[i], long + 1);
                                         if (error)
                                             return "type." + error;
                                     }
@@ -55099,7 +57238,7 @@
                                     if (!Array.isArray(message.values))
                                         return "values: array expected";
                                     for (var i = 0; i < message.values.length; ++i) {
-                                        var error = $root.google.spanner.executor.v1.ValueList.verify(message.values[i]);
+                                        var error = $root.google.spanner.executor.v1.ValueList.verify(message.values[i], long + 1);
                                         if (error)
                                             return "values." + error;
                                     }
@@ -55115,9 +57254,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.MutationAction.UpdateArgs} UpdateArgs
                              */
-                            UpdateArgs.fromObject = function fromObject(object) {
+                            UpdateArgs.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.MutationAction.UpdateArgs)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.MutationAction.UpdateArgs();
                                 if (object.column) {
                                     if (!Array.isArray(object.column))
@@ -55133,7 +57276,7 @@
                                     for (var i = 0; i < object.type.length; ++i) {
                                         if (typeof object.type[i] !== "object")
                                             throw TypeError(".google.spanner.executor.v1.MutationAction.UpdateArgs.type: object expected");
-                                        message.type[i] = $root.google.spanner.v1.Type.fromObject(object.type[i]);
+                                        message.type[i] = $root.google.spanner.v1.Type.fromObject(object.type[i], long + 1);
                                     }
                                 }
                                 if (object.values) {
@@ -55143,7 +57286,7 @@
                                     for (var i = 0; i < object.values.length; ++i) {
                                         if (typeof object.values[i] !== "object")
                                             throw TypeError(".google.spanner.executor.v1.MutationAction.UpdateArgs.values: object expected");
-                                        message.values[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.values[i]);
+                                        message.values[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.values[i], long + 1);
                                     }
                                 }
                                 return message;
@@ -55239,7 +57382,7 @@
                             function Mod(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -55354,9 +57497,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            Mod.decode = function decode(reader, length, error) {
+                            Mod.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.MutationAction.Mod();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -55368,27 +57515,27 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.insert = $root.google.spanner.executor.v1.MutationAction.InsertArgs.decode(reader, reader.uint32());
+                                            message.insert = $root.google.spanner.executor.v1.MutationAction.InsertArgs.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
-                                            message.update = $root.google.spanner.executor.v1.MutationAction.UpdateArgs.decode(reader, reader.uint32());
+                                            message.update = $root.google.spanner.executor.v1.MutationAction.UpdateArgs.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 4: {
-                                            message.insertOrUpdate = $root.google.spanner.executor.v1.MutationAction.InsertArgs.decode(reader, reader.uint32());
+                                            message.insertOrUpdate = $root.google.spanner.executor.v1.MutationAction.InsertArgs.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 5: {
-                                            message.replace = $root.google.spanner.executor.v1.MutationAction.InsertArgs.decode(reader, reader.uint32());
+                                            message.replace = $root.google.spanner.executor.v1.MutationAction.InsertArgs.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 6: {
-                                            message.deleteKeys = $root.google.spanner.executor.v1.KeySet.decode(reader, reader.uint32());
+                                            message.deleteKeys = $root.google.spanner.executor.v1.KeySet.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -55419,34 +57566,38 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            Mod.verify = function verify(message) {
+                            Mod.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.table != null && message.hasOwnProperty("table"))
                                     if (!$util.isString(message.table))
                                         return "table: string expected";
                                 if (message.insert != null && message.hasOwnProperty("insert")) {
-                                    var error = $root.google.spanner.executor.v1.MutationAction.InsertArgs.verify(message.insert);
+                                    var error = $root.google.spanner.executor.v1.MutationAction.InsertArgs.verify(message.insert, long + 1);
                                     if (error)
                                         return "insert." + error;
                                 }
                                 if (message.update != null && message.hasOwnProperty("update")) {
-                                    var error = $root.google.spanner.executor.v1.MutationAction.UpdateArgs.verify(message.update);
+                                    var error = $root.google.spanner.executor.v1.MutationAction.UpdateArgs.verify(message.update, long + 1);
                                     if (error)
                                         return "update." + error;
                                 }
                                 if (message.insertOrUpdate != null && message.hasOwnProperty("insertOrUpdate")) {
-                                    var error = $root.google.spanner.executor.v1.MutationAction.InsertArgs.verify(message.insertOrUpdate);
+                                    var error = $root.google.spanner.executor.v1.MutationAction.InsertArgs.verify(message.insertOrUpdate, long + 1);
                                     if (error)
                                         return "insertOrUpdate." + error;
                                 }
                                 if (message.replace != null && message.hasOwnProperty("replace")) {
-                                    var error = $root.google.spanner.executor.v1.MutationAction.InsertArgs.verify(message.replace);
+                                    var error = $root.google.spanner.executor.v1.MutationAction.InsertArgs.verify(message.replace, long + 1);
                                     if (error)
                                         return "replace." + error;
                                 }
                                 if (message.deleteKeys != null && message.hasOwnProperty("deleteKeys")) {
-                                    var error = $root.google.spanner.executor.v1.KeySet.verify(message.deleteKeys);
+                                    var error = $root.google.spanner.executor.v1.KeySet.verify(message.deleteKeys, long + 1);
                                     if (error)
                                         return "deleteKeys." + error;
                                 }
@@ -55461,36 +57612,40 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.MutationAction.Mod} Mod
                              */
-                            Mod.fromObject = function fromObject(object) {
+                            Mod.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.MutationAction.Mod)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.MutationAction.Mod();
                                 if (object.table != null)
                                     message.table = String(object.table);
                                 if (object.insert != null) {
                                     if (typeof object.insert !== "object")
                                         throw TypeError(".google.spanner.executor.v1.MutationAction.Mod.insert: object expected");
-                                    message.insert = $root.google.spanner.executor.v1.MutationAction.InsertArgs.fromObject(object.insert);
+                                    message.insert = $root.google.spanner.executor.v1.MutationAction.InsertArgs.fromObject(object.insert, long + 1);
                                 }
                                 if (object.update != null) {
                                     if (typeof object.update !== "object")
                                         throw TypeError(".google.spanner.executor.v1.MutationAction.Mod.update: object expected");
-                                    message.update = $root.google.spanner.executor.v1.MutationAction.UpdateArgs.fromObject(object.update);
+                                    message.update = $root.google.spanner.executor.v1.MutationAction.UpdateArgs.fromObject(object.update, long + 1);
                                 }
                                 if (object.insertOrUpdate != null) {
                                     if (typeof object.insertOrUpdate !== "object")
                                         throw TypeError(".google.spanner.executor.v1.MutationAction.Mod.insertOrUpdate: object expected");
-                                    message.insertOrUpdate = $root.google.spanner.executor.v1.MutationAction.InsertArgs.fromObject(object.insertOrUpdate);
+                                    message.insertOrUpdate = $root.google.spanner.executor.v1.MutationAction.InsertArgs.fromObject(object.insertOrUpdate, long + 1);
                                 }
                                 if (object.replace != null) {
                                     if (typeof object.replace !== "object")
                                         throw TypeError(".google.spanner.executor.v1.MutationAction.Mod.replace: object expected");
-                                    message.replace = $root.google.spanner.executor.v1.MutationAction.InsertArgs.fromObject(object.replace);
+                                    message.replace = $root.google.spanner.executor.v1.MutationAction.InsertArgs.fromObject(object.replace, long + 1);
                                 }
                                 if (object.deleteKeys != null) {
                                     if (typeof object.deleteKeys !== "object")
                                         throw TypeError(".google.spanner.executor.v1.MutationAction.Mod.deleteKeys: object expected");
-                                    message.deleteKeys = $root.google.spanner.executor.v1.KeySet.fromObject(object.deleteKeys);
+                                    message.deleteKeys = $root.google.spanner.executor.v1.KeySet.fromObject(object.deleteKeys, long + 1);
                                 }
                                 return message;
                             };
@@ -55583,7 +57738,7 @@
                         function WriteMutationsAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -55648,9 +57803,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        WriteMutationsAction.decode = function decode(reader, length, error) {
+                        WriteMutationsAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.WriteMutationsAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -55658,11 +57817,11 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.mutation = $root.google.spanner.executor.v1.MutationAction.decode(reader, reader.uint32());
+                                        message.mutation = $root.google.spanner.executor.v1.MutationAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -55693,11 +57852,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        WriteMutationsAction.verify = function verify(message) {
+                        WriteMutationsAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.mutation != null && message.hasOwnProperty("mutation")) {
-                                var error = $root.google.spanner.executor.v1.MutationAction.verify(message.mutation);
+                                var error = $root.google.spanner.executor.v1.MutationAction.verify(message.mutation, long + 1);
                                 if (error)
                                     return "mutation." + error;
                             }
@@ -55712,14 +57875,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.WriteMutationsAction} WriteMutationsAction
                          */
-                        WriteMutationsAction.fromObject = function fromObject(object) {
+                        WriteMutationsAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.WriteMutationsAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.WriteMutationsAction();
                             if (object.mutation != null) {
                                 if (typeof object.mutation !== "object")
                                     throw TypeError(".google.spanner.executor.v1.WriteMutationsAction.mutation: object expected");
-                                message.mutation = $root.google.spanner.executor.v1.MutationAction.fromObject(object.mutation);
+                                message.mutation = $root.google.spanner.executor.v1.MutationAction.fromObject(object.mutation, long + 1);
                             }
                             return message;
                         };
@@ -55794,7 +57961,7 @@
                         function PartitionedUpdateAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -55878,9 +58045,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        PartitionedUpdateAction.decode = function decode(reader, length, error) {
+                        PartitionedUpdateAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.PartitionedUpdateAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -55888,15 +58059,15 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.options = $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions.decode(reader, reader.uint32());
+                                        message.options = $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
-                                        message.update = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32());
+                                        message.update = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -55927,20 +58098,24 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        PartitionedUpdateAction.verify = function verify(message) {
+                        PartitionedUpdateAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.options != null && message.hasOwnProperty("options")) {
                                 properties._options = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions.verify(message.options);
+                                    var error = $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions.verify(message.options, long + 1);
                                     if (error)
                                         return "options." + error;
                                 }
                             }
                             if (message.update != null && message.hasOwnProperty("update")) {
-                                var error = $root.google.spanner.executor.v1.QueryAction.verify(message.update);
+                                var error = $root.google.spanner.executor.v1.QueryAction.verify(message.update, long + 1);
                                 if (error)
                                     return "update." + error;
                             }
@@ -55955,19 +58130,23 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.PartitionedUpdateAction} PartitionedUpdateAction
                          */
-                        PartitionedUpdateAction.fromObject = function fromObject(object) {
+                        PartitionedUpdateAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.PartitionedUpdateAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.PartitionedUpdateAction();
                             if (object.options != null) {
                                 if (typeof object.options !== "object")
                                     throw TypeError(".google.spanner.executor.v1.PartitionedUpdateAction.options: object expected");
-                                message.options = $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions.fromObject(object.options);
+                                message.options = $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions.fromObject(object.options, long + 1);
                             }
                             if (object.update != null) {
                                 if (typeof object.update !== "object")
                                     throw TypeError(".google.spanner.executor.v1.PartitionedUpdateAction.update: object expected");
-                                message.update = $root.google.spanner.executor.v1.QueryAction.fromObject(object.update);
+                                message.update = $root.google.spanner.executor.v1.QueryAction.fromObject(object.update, long + 1);
                             }
                             return message;
                         };
@@ -56044,7 +58223,7 @@
                             function ExecutePartitionedUpdateOptions(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -56134,9 +58313,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ExecutePartitionedUpdateOptions.decode = function decode(reader, length, error) {
+                            ExecutePartitionedUpdateOptions.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -56152,7 +58335,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -56183,9 +58366,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ExecutePartitionedUpdateOptions.verify = function verify(message) {
+                            ExecutePartitionedUpdateOptions.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 var properties = {};
                                 if (message.rpcPriority != null && message.hasOwnProperty("rpcPriority")) {
                                     properties._rpcPriority = 1;
@@ -56215,9 +58402,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions} ExecutePartitionedUpdateOptions
                              */
-                            ExecutePartitionedUpdateOptions.fromObject = function fromObject(object) {
+                            ExecutePartitionedUpdateOptions.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.PartitionedUpdateAction.ExecutePartitionedUpdateOptions();
                                 switch (object.rpcPriority) {
                                 default:
@@ -56330,7 +58521,7 @@
                             this.table = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -56441,9 +58632,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        StartTransactionAction.decode = function decode(reader, length, error) {
+                        StartTransactionAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.StartTransactionAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -56451,13 +58646,13 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.concurrency = $root.google.spanner.executor.v1.Concurrency.decode(reader, reader.uint32());
+                                        message.concurrency = $root.google.spanner.executor.v1.Concurrency.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
                                         if (!(message.table && message.table.length))
                                             message.table = [];
-                                        message.table.push($root.google.spanner.executor.v1.TableMetadata.decode(reader, reader.uint32()));
+                                        message.table.push($root.google.spanner.executor.v1.TableMetadata.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 3: {
@@ -56465,11 +58660,11 @@
                                         break;
                                     }
                                 case 4: {
-                                        message.executionOptions = $root.google.spanner.executor.v1.TransactionExecutionOptions.decode(reader, reader.uint32());
+                                        message.executionOptions = $root.google.spanner.executor.v1.TransactionExecutionOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -56500,14 +58695,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        StartTransactionAction.verify = function verify(message) {
+                        StartTransactionAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.concurrency != null && message.hasOwnProperty("concurrency")) {
                                 properties._concurrency = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.Concurrency.verify(message.concurrency);
+                                    var error = $root.google.spanner.executor.v1.Concurrency.verify(message.concurrency, long + 1);
                                     if (error)
                                         return "concurrency." + error;
                                 }
@@ -56516,7 +58715,7 @@
                                 if (!Array.isArray(message.table))
                                     return "table: array expected";
                                 for (var i = 0; i < message.table.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.TableMetadata.verify(message.table[i]);
+                                    var error = $root.google.spanner.executor.v1.TableMetadata.verify(message.table[i], long + 1);
                                     if (error)
                                         return "table." + error;
                                 }
@@ -56527,7 +58726,7 @@
                             if (message.executionOptions != null && message.hasOwnProperty("executionOptions")) {
                                 properties._executionOptions = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.TransactionExecutionOptions.verify(message.executionOptions);
+                                    var error = $root.google.spanner.executor.v1.TransactionExecutionOptions.verify(message.executionOptions, long + 1);
                                     if (error)
                                         return "executionOptions." + error;
                                 }
@@ -56543,14 +58742,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.StartTransactionAction} StartTransactionAction
                          */
-                        StartTransactionAction.fromObject = function fromObject(object) {
+                        StartTransactionAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.StartTransactionAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.StartTransactionAction();
                             if (object.concurrency != null) {
                                 if (typeof object.concurrency !== "object")
                                     throw TypeError(".google.spanner.executor.v1.StartTransactionAction.concurrency: object expected");
-                                message.concurrency = $root.google.spanner.executor.v1.Concurrency.fromObject(object.concurrency);
+                                message.concurrency = $root.google.spanner.executor.v1.Concurrency.fromObject(object.concurrency, long + 1);
                             }
                             if (object.table) {
                                 if (!Array.isArray(object.table))
@@ -56559,7 +58762,7 @@
                                 for (var i = 0; i < object.table.length; ++i) {
                                     if (typeof object.table[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.StartTransactionAction.table: object expected");
-                                    message.table[i] = $root.google.spanner.executor.v1.TableMetadata.fromObject(object.table[i]);
+                                    message.table[i] = $root.google.spanner.executor.v1.TableMetadata.fromObject(object.table[i], long + 1);
                                 }
                             }
                             if (object.transactionSeed != null)
@@ -56567,7 +58770,7 @@
                             if (object.executionOptions != null) {
                                 if (typeof object.executionOptions !== "object")
                                     throw TypeError(".google.spanner.executor.v1.StartTransactionAction.executionOptions: object expected");
-                                message.executionOptions = $root.google.spanner.executor.v1.TransactionExecutionOptions.fromObject(object.executionOptions);
+                                message.executionOptions = $root.google.spanner.executor.v1.TransactionExecutionOptions.fromObject(object.executionOptions, long + 1);
                             }
                             return message;
                         };
@@ -56666,7 +58869,7 @@
                         function Concurrency(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -56825,9 +59028,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Concurrency.decode = function decode(reader, length, error) {
+                        Concurrency.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.Concurrency();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -56871,7 +59078,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -56902,9 +59109,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Concurrency.verify = function verify(message) {
+                        Concurrency.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.stalenessSeconds != null && message.hasOwnProperty("stalenessSeconds")) {
                                 properties.concurrencyMode = 1;
@@ -56966,9 +59177,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.Concurrency} Concurrency
                          */
-                        Concurrency.fromObject = function fromObject(object) {
+                        Concurrency.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.Concurrency)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.Concurrency();
                             if (object.stalenessSeconds != null)
                                 message.stalenessSeconds = Number(object.stalenessSeconds);
@@ -57135,7 +59350,7 @@
                             this.keyColumn = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -57222,9 +59437,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        TableMetadata.decode = function decode(reader, length, error) {
+                        TableMetadata.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.TableMetadata();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -57238,17 +59457,17 @@
                                 case 2: {
                                         if (!(message.column && message.column.length))
                                             message.column = [];
-                                        message.column.push($root.google.spanner.executor.v1.ColumnMetadata.decode(reader, reader.uint32()));
+                                        message.column.push($root.google.spanner.executor.v1.ColumnMetadata.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 3: {
                                         if (!(message.keyColumn && message.keyColumn.length))
                                             message.keyColumn = [];
-                                        message.keyColumn.push($root.google.spanner.executor.v1.ColumnMetadata.decode(reader, reader.uint32()));
+                                        message.keyColumn.push($root.google.spanner.executor.v1.ColumnMetadata.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -57279,9 +59498,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        TableMetadata.verify = function verify(message) {
+                        TableMetadata.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.name != null && message.hasOwnProperty("name"))
                                 if (!$util.isString(message.name))
                                     return "name: string expected";
@@ -57289,7 +59512,7 @@
                                 if (!Array.isArray(message.column))
                                     return "column: array expected";
                                 for (var i = 0; i < message.column.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.ColumnMetadata.verify(message.column[i]);
+                                    var error = $root.google.spanner.executor.v1.ColumnMetadata.verify(message.column[i], long + 1);
                                     if (error)
                                         return "column." + error;
                                 }
@@ -57298,7 +59521,7 @@
                                 if (!Array.isArray(message.keyColumn))
                                     return "keyColumn: array expected";
                                 for (var i = 0; i < message.keyColumn.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.ColumnMetadata.verify(message.keyColumn[i]);
+                                    var error = $root.google.spanner.executor.v1.ColumnMetadata.verify(message.keyColumn[i], long + 1);
                                     if (error)
                                         return "keyColumn." + error;
                                 }
@@ -57314,9 +59537,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.TableMetadata} TableMetadata
                          */
-                        TableMetadata.fromObject = function fromObject(object) {
+                        TableMetadata.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.TableMetadata)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.TableMetadata();
                             if (object.name != null)
                                 message.name = String(object.name);
@@ -57327,7 +59554,7 @@
                                 for (var i = 0; i < object.column.length; ++i) {
                                     if (typeof object.column[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.TableMetadata.column: object expected");
-                                    message.column[i] = $root.google.spanner.executor.v1.ColumnMetadata.fromObject(object.column[i]);
+                                    message.column[i] = $root.google.spanner.executor.v1.ColumnMetadata.fromObject(object.column[i], long + 1);
                                 }
                             }
                             if (object.keyColumn) {
@@ -57337,7 +59564,7 @@
                                 for (var i = 0; i < object.keyColumn.length; ++i) {
                                     if (typeof object.keyColumn[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.TableMetadata.keyColumn: object expected");
-                                    message.keyColumn[i] = $root.google.spanner.executor.v1.ColumnMetadata.fromObject(object.keyColumn[i]);
+                                    message.keyColumn[i] = $root.google.spanner.executor.v1.ColumnMetadata.fromObject(object.keyColumn[i], long + 1);
                                 }
                             }
                             return message;
@@ -57427,7 +59654,7 @@
                         function ColumnMetadata(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -57502,9 +59729,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ColumnMetadata.decode = function decode(reader, length, error) {
+                        ColumnMetadata.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ColumnMetadata();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -57516,11 +59747,11 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                        message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -57551,14 +59782,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ColumnMetadata.verify = function verify(message) {
+                        ColumnMetadata.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.name != null && message.hasOwnProperty("name"))
                                 if (!$util.isString(message.name))
                                     return "name: string expected";
                             if (message.type != null && message.hasOwnProperty("type")) {
-                                var error = $root.google.spanner.v1.Type.verify(message.type);
+                                var error = $root.google.spanner.v1.Type.verify(message.type, long + 1);
                                 if (error)
                                     return "type." + error;
                             }
@@ -57573,16 +59808,20 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ColumnMetadata} ColumnMetadata
                          */
-                        ColumnMetadata.fromObject = function fromObject(object) {
+                        ColumnMetadata.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ColumnMetadata)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ColumnMetadata();
                             if (object.name != null)
                                 message.name = String(object.name);
                             if (object.type != null) {
                                 if (typeof object.type !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ColumnMetadata.type: object expected");
-                                message.type = $root.google.spanner.v1.Type.fromObject(object.type);
+                                message.type = $root.google.spanner.v1.Type.fromObject(object.type, long + 1);
                             }
                             return message;
                         };
@@ -57665,7 +59904,7 @@
                         function TransactionExecutionOptions(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -57780,9 +60019,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        TransactionExecutionOptions.decode = function decode(reader, length, error) {
+                        TransactionExecutionOptions.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.TransactionExecutionOptions();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -57814,7 +60057,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -57845,9 +60088,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        TransactionExecutionOptions.verify = function verify(message) {
+                        TransactionExecutionOptions.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.optimistic != null && message.hasOwnProperty("optimistic"))
                                 if (typeof message.optimistic !== "boolean")
                                     return "optimistic: boolean expected";
@@ -57877,9 +60124,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.TransactionExecutionOptions} TransactionExecutionOptions
                          */
-                        TransactionExecutionOptions.fromObject = function fromObject(object) {
+                        TransactionExecutionOptions.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.TransactionExecutionOptions)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.TransactionExecutionOptions();
                             if (object.optimistic != null)
                                 message.optimistic = Boolean(object.optimistic);
@@ -57981,7 +60232,7 @@
                         function FinishTransactionAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -58046,9 +60297,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        FinishTransactionAction.decode = function decode(reader, length, error) {
+                        FinishTransactionAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.FinishTransactionAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -58060,7 +60315,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -58091,9 +60346,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        FinishTransactionAction.verify = function verify(message) {
+                        FinishTransactionAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.mode != null && message.hasOwnProperty("mode"))
                                 switch (message.mode) {
                                 default:
@@ -58114,9 +60373,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.FinishTransactionAction} FinishTransactionAction
                          */
-                        FinishTransactionAction.fromObject = function fromObject(object) {
+                        FinishTransactionAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.FinishTransactionAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.FinishTransactionAction();
                             switch (object.mode) {
                             default:
@@ -58254,7 +60517,7 @@
                         function AdminAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -58613,9 +60876,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        AdminAction.decode = function decode(reader, length, error) {
+                        AdminAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.AdminAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -58623,123 +60890,123 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.createUserInstanceConfig = $root.google.spanner.executor.v1.CreateUserInstanceConfigAction.decode(reader, reader.uint32());
+                                        message.createUserInstanceConfig = $root.google.spanner.executor.v1.CreateUserInstanceConfigAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
-                                        message.updateUserInstanceConfig = $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction.decode(reader, reader.uint32());
+                                        message.updateUserInstanceConfig = $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
-                                        message.deleteUserInstanceConfig = $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction.decode(reader, reader.uint32());
+                                        message.deleteUserInstanceConfig = $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 4: {
-                                        message.getCloudInstanceConfig = $root.google.spanner.executor.v1.GetCloudInstanceConfigAction.decode(reader, reader.uint32());
+                                        message.getCloudInstanceConfig = $root.google.spanner.executor.v1.GetCloudInstanceConfigAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 5: {
-                                        message.listInstanceConfigs = $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction.decode(reader, reader.uint32());
+                                        message.listInstanceConfigs = $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 6: {
-                                        message.createCloudInstance = $root.google.spanner.executor.v1.CreateCloudInstanceAction.decode(reader, reader.uint32());
+                                        message.createCloudInstance = $root.google.spanner.executor.v1.CreateCloudInstanceAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 7: {
-                                        message.updateCloudInstance = $root.google.spanner.executor.v1.UpdateCloudInstanceAction.decode(reader, reader.uint32());
+                                        message.updateCloudInstance = $root.google.spanner.executor.v1.UpdateCloudInstanceAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 8: {
-                                        message.deleteCloudInstance = $root.google.spanner.executor.v1.DeleteCloudInstanceAction.decode(reader, reader.uint32());
+                                        message.deleteCloudInstance = $root.google.spanner.executor.v1.DeleteCloudInstanceAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 9: {
-                                        message.listCloudInstances = $root.google.spanner.executor.v1.ListCloudInstancesAction.decode(reader, reader.uint32());
+                                        message.listCloudInstances = $root.google.spanner.executor.v1.ListCloudInstancesAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 10: {
-                                        message.getCloudInstance = $root.google.spanner.executor.v1.GetCloudInstanceAction.decode(reader, reader.uint32());
+                                        message.getCloudInstance = $root.google.spanner.executor.v1.GetCloudInstanceAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 11: {
-                                        message.createCloudDatabase = $root.google.spanner.executor.v1.CreateCloudDatabaseAction.decode(reader, reader.uint32());
+                                        message.createCloudDatabase = $root.google.spanner.executor.v1.CreateCloudDatabaseAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 12: {
-                                        message.updateCloudDatabaseDdl = $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction.decode(reader, reader.uint32());
+                                        message.updateCloudDatabaseDdl = $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 27: {
-                                        message.updateCloudDatabase = $root.google.spanner.executor.v1.UpdateCloudDatabaseAction.decode(reader, reader.uint32());
+                                        message.updateCloudDatabase = $root.google.spanner.executor.v1.UpdateCloudDatabaseAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 13: {
-                                        message.dropCloudDatabase = $root.google.spanner.executor.v1.DropCloudDatabaseAction.decode(reader, reader.uint32());
+                                        message.dropCloudDatabase = $root.google.spanner.executor.v1.DropCloudDatabaseAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 14: {
-                                        message.listCloudDatabases = $root.google.spanner.executor.v1.ListCloudDatabasesAction.decode(reader, reader.uint32());
+                                        message.listCloudDatabases = $root.google.spanner.executor.v1.ListCloudDatabasesAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 15: {
-                                        message.listCloudDatabaseOperations = $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction.decode(reader, reader.uint32());
+                                        message.listCloudDatabaseOperations = $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 16: {
-                                        message.restoreCloudDatabase = $root.google.spanner.executor.v1.RestoreCloudDatabaseAction.decode(reader, reader.uint32());
+                                        message.restoreCloudDatabase = $root.google.spanner.executor.v1.RestoreCloudDatabaseAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 17: {
-                                        message.getCloudDatabase = $root.google.spanner.executor.v1.GetCloudDatabaseAction.decode(reader, reader.uint32());
+                                        message.getCloudDatabase = $root.google.spanner.executor.v1.GetCloudDatabaseAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 18: {
-                                        message.createCloudBackup = $root.google.spanner.executor.v1.CreateCloudBackupAction.decode(reader, reader.uint32());
+                                        message.createCloudBackup = $root.google.spanner.executor.v1.CreateCloudBackupAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 19: {
-                                        message.copyCloudBackup = $root.google.spanner.executor.v1.CopyCloudBackupAction.decode(reader, reader.uint32());
+                                        message.copyCloudBackup = $root.google.spanner.executor.v1.CopyCloudBackupAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 20: {
-                                        message.getCloudBackup = $root.google.spanner.executor.v1.GetCloudBackupAction.decode(reader, reader.uint32());
+                                        message.getCloudBackup = $root.google.spanner.executor.v1.GetCloudBackupAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 21: {
-                                        message.updateCloudBackup = $root.google.spanner.executor.v1.UpdateCloudBackupAction.decode(reader, reader.uint32());
+                                        message.updateCloudBackup = $root.google.spanner.executor.v1.UpdateCloudBackupAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 22: {
-                                        message.deleteCloudBackup = $root.google.spanner.executor.v1.DeleteCloudBackupAction.decode(reader, reader.uint32());
+                                        message.deleteCloudBackup = $root.google.spanner.executor.v1.DeleteCloudBackupAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 23: {
-                                        message.listCloudBackups = $root.google.spanner.executor.v1.ListCloudBackupsAction.decode(reader, reader.uint32());
+                                        message.listCloudBackups = $root.google.spanner.executor.v1.ListCloudBackupsAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 24: {
-                                        message.listCloudBackupOperations = $root.google.spanner.executor.v1.ListCloudBackupOperationsAction.decode(reader, reader.uint32());
+                                        message.listCloudBackupOperations = $root.google.spanner.executor.v1.ListCloudBackupOperationsAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 25: {
-                                        message.getOperation = $root.google.spanner.executor.v1.GetOperationAction.decode(reader, reader.uint32());
+                                        message.getOperation = $root.google.spanner.executor.v1.GetOperationAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 26: {
-                                        message.cancelOperation = $root.google.spanner.executor.v1.CancelOperationAction.decode(reader, reader.uint32());
+                                        message.cancelOperation = $root.google.spanner.executor.v1.CancelOperationAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 28: {
-                                        message.changeQuorumCloudDatabase = $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction.decode(reader, reader.uint32());
+                                        message.changeQuorumCloudDatabase = $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 29: {
-                                        message.addSplitPoints = $root.google.spanner.executor.v1.AddSplitPointsAction.decode(reader, reader.uint32());
+                                        message.addSplitPoints = $root.google.spanner.executor.v1.AddSplitPointsAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -58770,14 +61037,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        AdminAction.verify = function verify(message) {
+                        AdminAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.createUserInstanceConfig != null && message.hasOwnProperty("createUserInstanceConfig")) {
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.CreateUserInstanceConfigAction.verify(message.createUserInstanceConfig);
+                                    var error = $root.google.spanner.executor.v1.CreateUserInstanceConfigAction.verify(message.createUserInstanceConfig, long + 1);
                                     if (error)
                                         return "createUserInstanceConfig." + error;
                                 }
@@ -58787,7 +61058,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction.verify(message.updateUserInstanceConfig);
+                                    var error = $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction.verify(message.updateUserInstanceConfig, long + 1);
                                     if (error)
                                         return "updateUserInstanceConfig." + error;
                                 }
@@ -58797,7 +61068,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction.verify(message.deleteUserInstanceConfig);
+                                    var error = $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction.verify(message.deleteUserInstanceConfig, long + 1);
                                     if (error)
                                         return "deleteUserInstanceConfig." + error;
                                 }
@@ -58807,7 +61078,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.GetCloudInstanceConfigAction.verify(message.getCloudInstanceConfig);
+                                    var error = $root.google.spanner.executor.v1.GetCloudInstanceConfigAction.verify(message.getCloudInstanceConfig, long + 1);
                                     if (error)
                                         return "getCloudInstanceConfig." + error;
                                 }
@@ -58817,7 +61088,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction.verify(message.listInstanceConfigs);
+                                    var error = $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction.verify(message.listInstanceConfigs, long + 1);
                                     if (error)
                                         return "listInstanceConfigs." + error;
                                 }
@@ -58827,7 +61098,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.CreateCloudInstanceAction.verify(message.createCloudInstance);
+                                    var error = $root.google.spanner.executor.v1.CreateCloudInstanceAction.verify(message.createCloudInstance, long + 1);
                                     if (error)
                                         return "createCloudInstance." + error;
                                 }
@@ -58837,7 +61108,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.UpdateCloudInstanceAction.verify(message.updateCloudInstance);
+                                    var error = $root.google.spanner.executor.v1.UpdateCloudInstanceAction.verify(message.updateCloudInstance, long + 1);
                                     if (error)
                                         return "updateCloudInstance." + error;
                                 }
@@ -58847,7 +61118,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.DeleteCloudInstanceAction.verify(message.deleteCloudInstance);
+                                    var error = $root.google.spanner.executor.v1.DeleteCloudInstanceAction.verify(message.deleteCloudInstance, long + 1);
                                     if (error)
                                         return "deleteCloudInstance." + error;
                                 }
@@ -58857,7 +61128,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ListCloudInstancesAction.verify(message.listCloudInstances);
+                                    var error = $root.google.spanner.executor.v1.ListCloudInstancesAction.verify(message.listCloudInstances, long + 1);
                                     if (error)
                                         return "listCloudInstances." + error;
                                 }
@@ -58867,7 +61138,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.GetCloudInstanceAction.verify(message.getCloudInstance);
+                                    var error = $root.google.spanner.executor.v1.GetCloudInstanceAction.verify(message.getCloudInstance, long + 1);
                                     if (error)
                                         return "getCloudInstance." + error;
                                 }
@@ -58877,7 +61148,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.CreateCloudDatabaseAction.verify(message.createCloudDatabase);
+                                    var error = $root.google.spanner.executor.v1.CreateCloudDatabaseAction.verify(message.createCloudDatabase, long + 1);
                                     if (error)
                                         return "createCloudDatabase." + error;
                                 }
@@ -58887,7 +61158,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction.verify(message.updateCloudDatabaseDdl);
+                                    var error = $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction.verify(message.updateCloudDatabaseDdl, long + 1);
                                     if (error)
                                         return "updateCloudDatabaseDdl." + error;
                                 }
@@ -58897,7 +61168,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.UpdateCloudDatabaseAction.verify(message.updateCloudDatabase);
+                                    var error = $root.google.spanner.executor.v1.UpdateCloudDatabaseAction.verify(message.updateCloudDatabase, long + 1);
                                     if (error)
                                         return "updateCloudDatabase." + error;
                                 }
@@ -58907,7 +61178,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.DropCloudDatabaseAction.verify(message.dropCloudDatabase);
+                                    var error = $root.google.spanner.executor.v1.DropCloudDatabaseAction.verify(message.dropCloudDatabase, long + 1);
                                     if (error)
                                         return "dropCloudDatabase." + error;
                                 }
@@ -58917,7 +61188,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ListCloudDatabasesAction.verify(message.listCloudDatabases);
+                                    var error = $root.google.spanner.executor.v1.ListCloudDatabasesAction.verify(message.listCloudDatabases, long + 1);
                                     if (error)
                                         return "listCloudDatabases." + error;
                                 }
@@ -58927,7 +61198,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction.verify(message.listCloudDatabaseOperations);
+                                    var error = $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction.verify(message.listCloudDatabaseOperations, long + 1);
                                     if (error)
                                         return "listCloudDatabaseOperations." + error;
                                 }
@@ -58937,7 +61208,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.RestoreCloudDatabaseAction.verify(message.restoreCloudDatabase);
+                                    var error = $root.google.spanner.executor.v1.RestoreCloudDatabaseAction.verify(message.restoreCloudDatabase, long + 1);
                                     if (error)
                                         return "restoreCloudDatabase." + error;
                                 }
@@ -58947,7 +61218,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.GetCloudDatabaseAction.verify(message.getCloudDatabase);
+                                    var error = $root.google.spanner.executor.v1.GetCloudDatabaseAction.verify(message.getCloudDatabase, long + 1);
                                     if (error)
                                         return "getCloudDatabase." + error;
                                 }
@@ -58957,7 +61228,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.CreateCloudBackupAction.verify(message.createCloudBackup);
+                                    var error = $root.google.spanner.executor.v1.CreateCloudBackupAction.verify(message.createCloudBackup, long + 1);
                                     if (error)
                                         return "createCloudBackup." + error;
                                 }
@@ -58967,7 +61238,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.CopyCloudBackupAction.verify(message.copyCloudBackup);
+                                    var error = $root.google.spanner.executor.v1.CopyCloudBackupAction.verify(message.copyCloudBackup, long + 1);
                                     if (error)
                                         return "copyCloudBackup." + error;
                                 }
@@ -58977,7 +61248,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.GetCloudBackupAction.verify(message.getCloudBackup);
+                                    var error = $root.google.spanner.executor.v1.GetCloudBackupAction.verify(message.getCloudBackup, long + 1);
                                     if (error)
                                         return "getCloudBackup." + error;
                                 }
@@ -58987,7 +61258,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.UpdateCloudBackupAction.verify(message.updateCloudBackup);
+                                    var error = $root.google.spanner.executor.v1.UpdateCloudBackupAction.verify(message.updateCloudBackup, long + 1);
                                     if (error)
                                         return "updateCloudBackup." + error;
                                 }
@@ -58997,7 +61268,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.DeleteCloudBackupAction.verify(message.deleteCloudBackup);
+                                    var error = $root.google.spanner.executor.v1.DeleteCloudBackupAction.verify(message.deleteCloudBackup, long + 1);
                                     if (error)
                                         return "deleteCloudBackup." + error;
                                 }
@@ -59007,7 +61278,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ListCloudBackupsAction.verify(message.listCloudBackups);
+                                    var error = $root.google.spanner.executor.v1.ListCloudBackupsAction.verify(message.listCloudBackups, long + 1);
                                     if (error)
                                         return "listCloudBackups." + error;
                                 }
@@ -59017,7 +61288,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ListCloudBackupOperationsAction.verify(message.listCloudBackupOperations);
+                                    var error = $root.google.spanner.executor.v1.ListCloudBackupOperationsAction.verify(message.listCloudBackupOperations, long + 1);
                                     if (error)
                                         return "listCloudBackupOperations." + error;
                                 }
@@ -59027,7 +61298,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.GetOperationAction.verify(message.getOperation);
+                                    var error = $root.google.spanner.executor.v1.GetOperationAction.verify(message.getOperation, long + 1);
                                     if (error)
                                         return "getOperation." + error;
                                 }
@@ -59037,7 +61308,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.CancelOperationAction.verify(message.cancelOperation);
+                                    var error = $root.google.spanner.executor.v1.CancelOperationAction.verify(message.cancelOperation, long + 1);
                                     if (error)
                                         return "cancelOperation." + error;
                                 }
@@ -59047,7 +61318,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction.verify(message.changeQuorumCloudDatabase);
+                                    var error = $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction.verify(message.changeQuorumCloudDatabase, long + 1);
                                     if (error)
                                         return "changeQuorumCloudDatabase." + error;
                                 }
@@ -59057,7 +61328,7 @@
                                     return "action: multiple values";
                                 properties.action = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.AddSplitPointsAction.verify(message.addSplitPoints);
+                                    var error = $root.google.spanner.executor.v1.AddSplitPointsAction.verify(message.addSplitPoints, long + 1);
                                     if (error)
                                         return "addSplitPoints." + error;
                                 }
@@ -59073,154 +61344,158 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.AdminAction} AdminAction
                          */
-                        AdminAction.fromObject = function fromObject(object) {
+                        AdminAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.AdminAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.AdminAction();
                             if (object.createUserInstanceConfig != null) {
                                 if (typeof object.createUserInstanceConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.createUserInstanceConfig: object expected");
-                                message.createUserInstanceConfig = $root.google.spanner.executor.v1.CreateUserInstanceConfigAction.fromObject(object.createUserInstanceConfig);
+                                message.createUserInstanceConfig = $root.google.spanner.executor.v1.CreateUserInstanceConfigAction.fromObject(object.createUserInstanceConfig, long + 1);
                             }
                             if (object.updateUserInstanceConfig != null) {
                                 if (typeof object.updateUserInstanceConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.updateUserInstanceConfig: object expected");
-                                message.updateUserInstanceConfig = $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction.fromObject(object.updateUserInstanceConfig);
+                                message.updateUserInstanceConfig = $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction.fromObject(object.updateUserInstanceConfig, long + 1);
                             }
                             if (object.deleteUserInstanceConfig != null) {
                                 if (typeof object.deleteUserInstanceConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.deleteUserInstanceConfig: object expected");
-                                message.deleteUserInstanceConfig = $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction.fromObject(object.deleteUserInstanceConfig);
+                                message.deleteUserInstanceConfig = $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction.fromObject(object.deleteUserInstanceConfig, long + 1);
                             }
                             if (object.getCloudInstanceConfig != null) {
                                 if (typeof object.getCloudInstanceConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.getCloudInstanceConfig: object expected");
-                                message.getCloudInstanceConfig = $root.google.spanner.executor.v1.GetCloudInstanceConfigAction.fromObject(object.getCloudInstanceConfig);
+                                message.getCloudInstanceConfig = $root.google.spanner.executor.v1.GetCloudInstanceConfigAction.fromObject(object.getCloudInstanceConfig, long + 1);
                             }
                             if (object.listInstanceConfigs != null) {
                                 if (typeof object.listInstanceConfigs !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.listInstanceConfigs: object expected");
-                                message.listInstanceConfigs = $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction.fromObject(object.listInstanceConfigs);
+                                message.listInstanceConfigs = $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction.fromObject(object.listInstanceConfigs, long + 1);
                             }
                             if (object.createCloudInstance != null) {
                                 if (typeof object.createCloudInstance !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.createCloudInstance: object expected");
-                                message.createCloudInstance = $root.google.spanner.executor.v1.CreateCloudInstanceAction.fromObject(object.createCloudInstance);
+                                message.createCloudInstance = $root.google.spanner.executor.v1.CreateCloudInstanceAction.fromObject(object.createCloudInstance, long + 1);
                             }
                             if (object.updateCloudInstance != null) {
                                 if (typeof object.updateCloudInstance !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.updateCloudInstance: object expected");
-                                message.updateCloudInstance = $root.google.spanner.executor.v1.UpdateCloudInstanceAction.fromObject(object.updateCloudInstance);
+                                message.updateCloudInstance = $root.google.spanner.executor.v1.UpdateCloudInstanceAction.fromObject(object.updateCloudInstance, long + 1);
                             }
                             if (object.deleteCloudInstance != null) {
                                 if (typeof object.deleteCloudInstance !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.deleteCloudInstance: object expected");
-                                message.deleteCloudInstance = $root.google.spanner.executor.v1.DeleteCloudInstanceAction.fromObject(object.deleteCloudInstance);
+                                message.deleteCloudInstance = $root.google.spanner.executor.v1.DeleteCloudInstanceAction.fromObject(object.deleteCloudInstance, long + 1);
                             }
                             if (object.listCloudInstances != null) {
                                 if (typeof object.listCloudInstances !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.listCloudInstances: object expected");
-                                message.listCloudInstances = $root.google.spanner.executor.v1.ListCloudInstancesAction.fromObject(object.listCloudInstances);
+                                message.listCloudInstances = $root.google.spanner.executor.v1.ListCloudInstancesAction.fromObject(object.listCloudInstances, long + 1);
                             }
                             if (object.getCloudInstance != null) {
                                 if (typeof object.getCloudInstance !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.getCloudInstance: object expected");
-                                message.getCloudInstance = $root.google.spanner.executor.v1.GetCloudInstanceAction.fromObject(object.getCloudInstance);
+                                message.getCloudInstance = $root.google.spanner.executor.v1.GetCloudInstanceAction.fromObject(object.getCloudInstance, long + 1);
                             }
                             if (object.createCloudDatabase != null) {
                                 if (typeof object.createCloudDatabase !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.createCloudDatabase: object expected");
-                                message.createCloudDatabase = $root.google.spanner.executor.v1.CreateCloudDatabaseAction.fromObject(object.createCloudDatabase);
+                                message.createCloudDatabase = $root.google.spanner.executor.v1.CreateCloudDatabaseAction.fromObject(object.createCloudDatabase, long + 1);
                             }
                             if (object.updateCloudDatabaseDdl != null) {
                                 if (typeof object.updateCloudDatabaseDdl !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.updateCloudDatabaseDdl: object expected");
-                                message.updateCloudDatabaseDdl = $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction.fromObject(object.updateCloudDatabaseDdl);
+                                message.updateCloudDatabaseDdl = $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction.fromObject(object.updateCloudDatabaseDdl, long + 1);
                             }
                             if (object.updateCloudDatabase != null) {
                                 if (typeof object.updateCloudDatabase !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.updateCloudDatabase: object expected");
-                                message.updateCloudDatabase = $root.google.spanner.executor.v1.UpdateCloudDatabaseAction.fromObject(object.updateCloudDatabase);
+                                message.updateCloudDatabase = $root.google.spanner.executor.v1.UpdateCloudDatabaseAction.fromObject(object.updateCloudDatabase, long + 1);
                             }
                             if (object.dropCloudDatabase != null) {
                                 if (typeof object.dropCloudDatabase !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.dropCloudDatabase: object expected");
-                                message.dropCloudDatabase = $root.google.spanner.executor.v1.DropCloudDatabaseAction.fromObject(object.dropCloudDatabase);
+                                message.dropCloudDatabase = $root.google.spanner.executor.v1.DropCloudDatabaseAction.fromObject(object.dropCloudDatabase, long + 1);
                             }
                             if (object.listCloudDatabases != null) {
                                 if (typeof object.listCloudDatabases !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.listCloudDatabases: object expected");
-                                message.listCloudDatabases = $root.google.spanner.executor.v1.ListCloudDatabasesAction.fromObject(object.listCloudDatabases);
+                                message.listCloudDatabases = $root.google.spanner.executor.v1.ListCloudDatabasesAction.fromObject(object.listCloudDatabases, long + 1);
                             }
                             if (object.listCloudDatabaseOperations != null) {
                                 if (typeof object.listCloudDatabaseOperations !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.listCloudDatabaseOperations: object expected");
-                                message.listCloudDatabaseOperations = $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction.fromObject(object.listCloudDatabaseOperations);
+                                message.listCloudDatabaseOperations = $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction.fromObject(object.listCloudDatabaseOperations, long + 1);
                             }
                             if (object.restoreCloudDatabase != null) {
                                 if (typeof object.restoreCloudDatabase !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.restoreCloudDatabase: object expected");
-                                message.restoreCloudDatabase = $root.google.spanner.executor.v1.RestoreCloudDatabaseAction.fromObject(object.restoreCloudDatabase);
+                                message.restoreCloudDatabase = $root.google.spanner.executor.v1.RestoreCloudDatabaseAction.fromObject(object.restoreCloudDatabase, long + 1);
                             }
                             if (object.getCloudDatabase != null) {
                                 if (typeof object.getCloudDatabase !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.getCloudDatabase: object expected");
-                                message.getCloudDatabase = $root.google.spanner.executor.v1.GetCloudDatabaseAction.fromObject(object.getCloudDatabase);
+                                message.getCloudDatabase = $root.google.spanner.executor.v1.GetCloudDatabaseAction.fromObject(object.getCloudDatabase, long + 1);
                             }
                             if (object.createCloudBackup != null) {
                                 if (typeof object.createCloudBackup !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.createCloudBackup: object expected");
-                                message.createCloudBackup = $root.google.spanner.executor.v1.CreateCloudBackupAction.fromObject(object.createCloudBackup);
+                                message.createCloudBackup = $root.google.spanner.executor.v1.CreateCloudBackupAction.fromObject(object.createCloudBackup, long + 1);
                             }
                             if (object.copyCloudBackup != null) {
                                 if (typeof object.copyCloudBackup !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.copyCloudBackup: object expected");
-                                message.copyCloudBackup = $root.google.spanner.executor.v1.CopyCloudBackupAction.fromObject(object.copyCloudBackup);
+                                message.copyCloudBackup = $root.google.spanner.executor.v1.CopyCloudBackupAction.fromObject(object.copyCloudBackup, long + 1);
                             }
                             if (object.getCloudBackup != null) {
                                 if (typeof object.getCloudBackup !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.getCloudBackup: object expected");
-                                message.getCloudBackup = $root.google.spanner.executor.v1.GetCloudBackupAction.fromObject(object.getCloudBackup);
+                                message.getCloudBackup = $root.google.spanner.executor.v1.GetCloudBackupAction.fromObject(object.getCloudBackup, long + 1);
                             }
                             if (object.updateCloudBackup != null) {
                                 if (typeof object.updateCloudBackup !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.updateCloudBackup: object expected");
-                                message.updateCloudBackup = $root.google.spanner.executor.v1.UpdateCloudBackupAction.fromObject(object.updateCloudBackup);
+                                message.updateCloudBackup = $root.google.spanner.executor.v1.UpdateCloudBackupAction.fromObject(object.updateCloudBackup, long + 1);
                             }
                             if (object.deleteCloudBackup != null) {
                                 if (typeof object.deleteCloudBackup !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.deleteCloudBackup: object expected");
-                                message.deleteCloudBackup = $root.google.spanner.executor.v1.DeleteCloudBackupAction.fromObject(object.deleteCloudBackup);
+                                message.deleteCloudBackup = $root.google.spanner.executor.v1.DeleteCloudBackupAction.fromObject(object.deleteCloudBackup, long + 1);
                             }
                             if (object.listCloudBackups != null) {
                                 if (typeof object.listCloudBackups !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.listCloudBackups: object expected");
-                                message.listCloudBackups = $root.google.spanner.executor.v1.ListCloudBackupsAction.fromObject(object.listCloudBackups);
+                                message.listCloudBackups = $root.google.spanner.executor.v1.ListCloudBackupsAction.fromObject(object.listCloudBackups, long + 1);
                             }
                             if (object.listCloudBackupOperations != null) {
                                 if (typeof object.listCloudBackupOperations !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.listCloudBackupOperations: object expected");
-                                message.listCloudBackupOperations = $root.google.spanner.executor.v1.ListCloudBackupOperationsAction.fromObject(object.listCloudBackupOperations);
+                                message.listCloudBackupOperations = $root.google.spanner.executor.v1.ListCloudBackupOperationsAction.fromObject(object.listCloudBackupOperations, long + 1);
                             }
                             if (object.getOperation != null) {
                                 if (typeof object.getOperation !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.getOperation: object expected");
-                                message.getOperation = $root.google.spanner.executor.v1.GetOperationAction.fromObject(object.getOperation);
+                                message.getOperation = $root.google.spanner.executor.v1.GetOperationAction.fromObject(object.getOperation, long + 1);
                             }
                             if (object.cancelOperation != null) {
                                 if (typeof object.cancelOperation !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.cancelOperation: object expected");
-                                message.cancelOperation = $root.google.spanner.executor.v1.CancelOperationAction.fromObject(object.cancelOperation);
+                                message.cancelOperation = $root.google.spanner.executor.v1.CancelOperationAction.fromObject(object.cancelOperation, long + 1);
                             }
                             if (object.changeQuorumCloudDatabase != null) {
                                 if (typeof object.changeQuorumCloudDatabase !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.changeQuorumCloudDatabase: object expected");
-                                message.changeQuorumCloudDatabase = $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction.fromObject(object.changeQuorumCloudDatabase);
+                                message.changeQuorumCloudDatabase = $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction.fromObject(object.changeQuorumCloudDatabase, long + 1);
                             }
                             if (object.addSplitPoints != null) {
                                 if (typeof object.addSplitPoints !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminAction.addSplitPoints: object expected");
-                                message.addSplitPoints = $root.google.spanner.executor.v1.AddSplitPointsAction.fromObject(object.addSplitPoints);
+                                message.addSplitPoints = $root.google.spanner.executor.v1.AddSplitPointsAction.fromObject(object.addSplitPoints, long + 1);
                             }
                             return message;
                         };
@@ -59439,7 +61714,7 @@
                             this.replicas = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -59535,9 +61810,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CreateUserInstanceConfigAction.decode = function decode(reader, length, error) {
+                        CreateUserInstanceConfigAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CreateUserInstanceConfigAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -59559,11 +61838,11 @@
                                 case 4: {
                                         if (!(message.replicas && message.replicas.length))
                                             message.replicas = [];
-                                        message.replicas.push($root.google.spanner.admin.instance.v1.ReplicaInfo.decode(reader, reader.uint32()));
+                                        message.replicas.push($root.google.spanner.admin.instance.v1.ReplicaInfo.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -59594,9 +61873,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CreateUserInstanceConfigAction.verify = function verify(message) {
+                        CreateUserInstanceConfigAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.userConfigId != null && message.hasOwnProperty("userConfigId"))
                                 if (!$util.isString(message.userConfigId))
                                     return "userConfigId: string expected";
@@ -59610,7 +61893,7 @@
                                 if (!Array.isArray(message.replicas))
                                     return "replicas: array expected";
                                 for (var i = 0; i < message.replicas.length; ++i) {
-                                    var error = $root.google.spanner.admin.instance.v1.ReplicaInfo.verify(message.replicas[i]);
+                                    var error = $root.google.spanner.admin.instance.v1.ReplicaInfo.verify(message.replicas[i], long + 1);
                                     if (error)
                                         return "replicas." + error;
                                 }
@@ -59626,9 +61909,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CreateUserInstanceConfigAction} CreateUserInstanceConfigAction
                          */
-                        CreateUserInstanceConfigAction.fromObject = function fromObject(object) {
+                        CreateUserInstanceConfigAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CreateUserInstanceConfigAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CreateUserInstanceConfigAction();
                             if (object.userConfigId != null)
                                 message.userConfigId = String(object.userConfigId);
@@ -59643,7 +61930,7 @@
                                 for (var i = 0; i < object.replicas.length; ++i) {
                                     if (typeof object.replicas[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.CreateUserInstanceConfigAction.replicas: object expected");
-                                    message.replicas[i] = $root.google.spanner.admin.instance.v1.ReplicaInfo.fromObject(object.replicas[i]);
+                                    message.replicas[i] = $root.google.spanner.admin.instance.v1.ReplicaInfo.fromObject(object.replicas[i], long + 1);
                                 }
                             }
                             return message;
@@ -59736,7 +62023,7 @@
                             this.labels = {};
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -59841,9 +62128,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        UpdateUserInstanceConfigAction.decode = function decode(reader, length, error) {
+                        UpdateUserInstanceConfigAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction(), key, value;
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -59878,15 +62169,17 @@
                                                 value = reader.string();
                                                 break;
                                             default:
-                                                reader.skipType(tag2 & 7);
+                                                reader.skipType(tag2 & 7, long);
                                                 break;
                                             }
                                         }
+                                        if (key === "__proto__")
+                                            $util.makeProp(message.labels, key);
                                         message.labels[key] = value;
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -59917,9 +62210,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        UpdateUserInstanceConfigAction.verify = function verify(message) {
+                        UpdateUserInstanceConfigAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.userConfigId != null && message.hasOwnProperty("userConfigId"))
                                 if (!$util.isString(message.userConfigId))
@@ -59951,9 +62248,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.UpdateUserInstanceConfigAction} UpdateUserInstanceConfigAction
                          */
-                        UpdateUserInstanceConfigAction.fromObject = function fromObject(object) {
+                        UpdateUserInstanceConfigAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.UpdateUserInstanceConfigAction();
                             if (object.userConfigId != null)
                                 message.userConfigId = String(object.userConfigId);
@@ -59965,8 +62266,11 @@
                                 if (typeof object.labels !== "object")
                                     throw TypeError(".google.spanner.executor.v1.UpdateUserInstanceConfigAction.labels: object expected");
                                 message.labels = {};
-                                for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i)
+                                for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i) {
+                                    if (keys[i] === "__proto__")
+                                        $util.makeProp(message.labels, keys[i]);
                                     message.labels[keys[i]] = String(object.labels[keys[i]]);
+                                }
                             }
                             return message;
                         };
@@ -60002,8 +62306,11 @@
                             var keys2;
                             if (message.labels && (keys2 = Object.keys(message.labels)).length) {
                                 object.labels = {};
-                                for (var j = 0; j < keys2.length; ++j)
+                                for (var j = 0; j < keys2.length; ++j) {
+                                    if (keys2[j] === "__proto__")
+                                        $util.makeProp(object.labels, keys2[j]);
                                     object.labels[keys2[j]] = message.labels[keys2[j]];
+                                }
                             }
                             return object;
                         };
@@ -60058,7 +62365,7 @@
                         function GetCloudInstanceConfigAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -60133,9 +62440,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        GetCloudInstanceConfigAction.decode = function decode(reader, length, error) {
+                        GetCloudInstanceConfigAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.GetCloudInstanceConfigAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -60151,7 +62462,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -60182,9 +62493,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        GetCloudInstanceConfigAction.verify = function verify(message) {
+                        GetCloudInstanceConfigAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.instanceConfigId != null && message.hasOwnProperty("instanceConfigId"))
                                 if (!$util.isString(message.instanceConfigId))
                                     return "instanceConfigId: string expected";
@@ -60202,9 +62517,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.GetCloudInstanceConfigAction} GetCloudInstanceConfigAction
                          */
-                        GetCloudInstanceConfigAction.fromObject = function fromObject(object) {
+                        GetCloudInstanceConfigAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.GetCloudInstanceConfigAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.GetCloudInstanceConfigAction();
                             if (object.instanceConfigId != null)
                                 message.instanceConfigId = String(object.instanceConfigId);
@@ -60287,7 +62606,7 @@
                         function DeleteUserInstanceConfigAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -60362,9 +62681,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        DeleteUserInstanceConfigAction.decode = function decode(reader, length, error) {
+                        DeleteUserInstanceConfigAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -60380,7 +62703,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -60411,9 +62734,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        DeleteUserInstanceConfigAction.verify = function verify(message) {
+                        DeleteUserInstanceConfigAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.userConfigId != null && message.hasOwnProperty("userConfigId"))
                                 if (!$util.isString(message.userConfigId))
                                     return "userConfigId: string expected";
@@ -60431,9 +62758,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.DeleteUserInstanceConfigAction} DeleteUserInstanceConfigAction
                          */
-                        DeleteUserInstanceConfigAction.fromObject = function fromObject(object) {
+                        DeleteUserInstanceConfigAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.DeleteUserInstanceConfigAction();
                             if (object.userConfigId != null)
                                 message.userConfigId = String(object.userConfigId);
@@ -60517,7 +62848,7 @@
                         function ListCloudInstanceConfigsAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -60617,9 +62948,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ListCloudInstanceConfigsAction.decode = function decode(reader, length, error) {
+                        ListCloudInstanceConfigsAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -60639,7 +62974,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -60670,9 +63005,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ListCloudInstanceConfigsAction.verify = function verify(message) {
+                        ListCloudInstanceConfigsAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
@@ -60698,9 +63037,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ListCloudInstanceConfigsAction} ListCloudInstanceConfigsAction
                          */
-                        ListCloudInstanceConfigsAction.fromObject = function fromObject(object) {
+                        ListCloudInstanceConfigsAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ListCloudInstanceConfigsAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -60798,7 +63141,7 @@
                             this.labels = {};
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -60955,9 +63298,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CreateCloudInstanceAction.decode = function decode(reader, length, error) {
+                        CreateCloudInstanceAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CreateCloudInstanceAction(), key, value;
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -60985,7 +63332,7 @@
                                         break;
                                     }
                                 case 7: {
-                                        message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32());
+                                        message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 5: {
@@ -61004,10 +63351,12 @@
                                                 value = reader.string();
                                                 break;
                                             default:
-                                                reader.skipType(tag2 & 7);
+                                                reader.skipType(tag2 & 7, long);
                                                 break;
                                             }
                                         }
+                                        if (key === "__proto__")
+                                            $util.makeProp(message.labels, key);
                                         message.labels[key] = value;
                                         break;
                                     }
@@ -61016,7 +63365,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -61047,9 +63396,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CreateCloudInstanceAction.verify = function verify(message) {
+                        CreateCloudInstanceAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.instanceId != null && message.hasOwnProperty("instanceId"))
                                 if (!$util.isString(message.instanceId))
@@ -61073,7 +63426,7 @@
                             if (message.autoscalingConfig != null && message.hasOwnProperty("autoscalingConfig")) {
                                 properties._autoscalingConfig = 1;
                                 {
-                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig, long + 1);
                                     if (error)
                                         return "autoscalingConfig." + error;
                                 }
@@ -61107,9 +63460,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CreateCloudInstanceAction} CreateCloudInstanceAction
                          */
-                        CreateCloudInstanceAction.fromObject = function fromObject(object) {
+                        CreateCloudInstanceAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CreateCloudInstanceAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CreateCloudInstanceAction();
                             if (object.instanceId != null)
                                 message.instanceId = String(object.instanceId);
@@ -61124,14 +63481,17 @@
                             if (object.autoscalingConfig != null) {
                                 if (typeof object.autoscalingConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CreateCloudInstanceAction.autoscalingConfig: object expected");
-                                message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig);
+                                message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig, long + 1);
                             }
                             if (object.labels) {
                                 if (typeof object.labels !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CreateCloudInstanceAction.labels: object expected");
                                 message.labels = {};
-                                for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i)
+                                for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i) {
+                                    if (keys[i] === "__proto__")
+                                        $util.makeProp(message.labels, keys[i]);
                                     message.labels[keys[i]] = String(object.labels[keys[i]]);
+                                }
                             }
                             switch (object.edition) {
                             default:
@@ -61195,8 +63555,11 @@
                             var keys2;
                             if (message.labels && (keys2 = Object.keys(message.labels)).length) {
                                 object.labels = {};
-                                for (var j = 0; j < keys2.length; ++j)
+                                for (var j = 0; j < keys2.length; ++j) {
+                                    if (keys2[j] === "__proto__")
+                                        $util.makeProp(object.labels, keys2[j]);
                                     object.labels[keys2[j]] = message.labels[keys2[j]];
+                                }
                             }
                             if (message.processingUnits != null && message.hasOwnProperty("processingUnits")) {
                                 object.processingUnits = message.processingUnits;
@@ -61270,7 +63633,7 @@
                             this.labels = {};
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -61433,9 +63796,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        UpdateCloudInstanceAction.decode = function decode(reader, length, error) {
+                        UpdateCloudInstanceAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.UpdateCloudInstanceAction(), key, value;
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -61463,7 +63830,7 @@
                                         break;
                                     }
                                 case 7: {
-                                        message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32());
+                                        message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 6: {
@@ -61482,10 +63849,12 @@
                                                 value = reader.string();
                                                 break;
                                             default:
-                                                reader.skipType(tag2 & 7);
+                                                reader.skipType(tag2 & 7, long);
                                                 break;
                                             }
                                         }
+                                        if (key === "__proto__")
+                                            $util.makeProp(message.labels, key);
                                         message.labels[key] = value;
                                         break;
                                     }
@@ -61494,7 +63863,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -61525,9 +63894,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        UpdateCloudInstanceAction.verify = function verify(message) {
+                        UpdateCloudInstanceAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.instanceId != null && message.hasOwnProperty("instanceId"))
                                 if (!$util.isString(message.instanceId))
@@ -61553,7 +63926,7 @@
                             if (message.autoscalingConfig != null && message.hasOwnProperty("autoscalingConfig")) {
                                 properties._autoscalingConfig = 1;
                                 {
-                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig);
+                                    var error = $root.google.spanner.admin.instance.v1.AutoscalingConfig.verify(message.autoscalingConfig, long + 1);
                                     if (error)
                                         return "autoscalingConfig." + error;
                                 }
@@ -61587,9 +63960,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.UpdateCloudInstanceAction} UpdateCloudInstanceAction
                          */
-                        UpdateCloudInstanceAction.fromObject = function fromObject(object) {
+                        UpdateCloudInstanceAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.UpdateCloudInstanceAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.UpdateCloudInstanceAction();
                             if (object.instanceId != null)
                                 message.instanceId = String(object.instanceId);
@@ -61604,14 +63981,17 @@
                             if (object.autoscalingConfig != null) {
                                 if (typeof object.autoscalingConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.UpdateCloudInstanceAction.autoscalingConfig: object expected");
-                                message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig);
+                                message.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.fromObject(object.autoscalingConfig, long + 1);
                             }
                             if (object.labels) {
                                 if (typeof object.labels !== "object")
                                     throw TypeError(".google.spanner.executor.v1.UpdateCloudInstanceAction.labels: object expected");
                                 message.labels = {};
-                                for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i)
+                                for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i) {
+                                    if (keys[i] === "__proto__")
+                                        $util.makeProp(message.labels, keys[i]);
                                     message.labels[keys[i]] = String(object.labels[keys[i]]);
+                                }
                             }
                             switch (object.edition) {
                             default:
@@ -61682,8 +64062,11 @@
                             var keys2;
                             if (message.labels && (keys2 = Object.keys(message.labels)).length) {
                                 object.labels = {};
-                                for (var j = 0; j < keys2.length; ++j)
+                                for (var j = 0; j < keys2.length; ++j) {
+                                    if (keys2[j] === "__proto__")
+                                        $util.makeProp(object.labels, keys2[j]);
                                     object.labels[keys2[j]] = message.labels[keys2[j]];
+                                }
                             }
                             if (message.autoscalingConfig != null && message.hasOwnProperty("autoscalingConfig")) {
                                 object.autoscalingConfig = $root.google.spanner.admin.instance.v1.AutoscalingConfig.toObject(message.autoscalingConfig, options);
@@ -61745,7 +64128,7 @@
                         function DeleteCloudInstanceAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -61820,9 +64203,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        DeleteCloudInstanceAction.decode = function decode(reader, length, error) {
+                        DeleteCloudInstanceAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DeleteCloudInstanceAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -61838,7 +64225,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -61869,9 +64256,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        DeleteCloudInstanceAction.verify = function verify(message) {
+                        DeleteCloudInstanceAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.instanceId != null && message.hasOwnProperty("instanceId"))
                                 if (!$util.isString(message.instanceId))
                                     return "instanceId: string expected";
@@ -61889,9 +64280,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.DeleteCloudInstanceAction} DeleteCloudInstanceAction
                          */
-                        DeleteCloudInstanceAction.fromObject = function fromObject(object) {
+                        DeleteCloudInstanceAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.DeleteCloudInstanceAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.DeleteCloudInstanceAction();
                             if (object.instanceId != null)
                                 message.instanceId = String(object.instanceId);
@@ -61980,7 +64375,7 @@
                             this.sdlStatement = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -62121,9 +64516,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CreateCloudDatabaseAction.decode = function decode(reader, length, error) {
+                        CreateCloudDatabaseAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CreateCloudDatabaseAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -62149,7 +64548,7 @@
                                         break;
                                     }
                                 case 5: {
-                                        message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32());
+                                        message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 6: {
@@ -62161,7 +64560,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -62192,9 +64591,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CreateCloudDatabaseAction.verify = function verify(message) {
+                        CreateCloudDatabaseAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.instanceId != null && message.hasOwnProperty("instanceId"))
                                 if (!$util.isString(message.instanceId))
@@ -62213,7 +64616,7 @@
                                         return "sdlStatement: string[] expected";
                             }
                             if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig);
+                                var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig, long + 1);
                                 if (error)
                                     return "encryptionConfig." + error;
                             }
@@ -62238,9 +64641,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CreateCloudDatabaseAction} CreateCloudDatabaseAction
                          */
-                        CreateCloudDatabaseAction.fromObject = function fromObject(object) {
+                        CreateCloudDatabaseAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CreateCloudDatabaseAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CreateCloudDatabaseAction();
                             if (object.instanceId != null)
                                 message.instanceId = String(object.instanceId);
@@ -62258,7 +64665,7 @@
                             if (object.encryptionConfig != null) {
                                 if (typeof object.encryptionConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CreateCloudDatabaseAction.encryptionConfig: object expected");
-                                message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig);
+                                message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                             }
                             if (object.dialect != null)
                                 message.dialect = String(object.dialect);
@@ -62372,7 +64779,7 @@
                             this.sdlStatement = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -62497,9 +64904,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        UpdateCloudDatabaseDdlAction.decode = function decode(reader, length, error) {
+                        UpdateCloudDatabaseDdlAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -62533,7 +64944,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -62564,9 +64975,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        UpdateCloudDatabaseDdlAction.verify = function verify(message) {
+                        UpdateCloudDatabaseDdlAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.instanceId != null && message.hasOwnProperty("instanceId"))
                                 if (!$util.isString(message.instanceId))
@@ -62603,9 +65018,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.UpdateCloudDatabaseDdlAction} UpdateCloudDatabaseDdlAction
                          */
-                        UpdateCloudDatabaseDdlAction.fromObject = function fromObject(object) {
+                        UpdateCloudDatabaseDdlAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.UpdateCloudDatabaseDdlAction();
                             if (object.instanceId != null)
                                 message.instanceId = String(object.instanceId);
@@ -62724,7 +65143,7 @@
                         function UpdateCloudDatabaseAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -62819,9 +65238,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        UpdateCloudDatabaseAction.decode = function decode(reader, length, error) {
+                        UpdateCloudDatabaseAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.UpdateCloudDatabaseAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -62845,7 +65268,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -62876,9 +65299,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        UpdateCloudDatabaseAction.verify = function verify(message) {
+                        UpdateCloudDatabaseAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.instanceId != null && message.hasOwnProperty("instanceId"))
                                 if (!$util.isString(message.instanceId))
                                     return "instanceId: string expected";
@@ -62902,9 +65329,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.UpdateCloudDatabaseAction} UpdateCloudDatabaseAction
                          */
-                        UpdateCloudDatabaseAction.fromObject = function fromObject(object) {
+                        UpdateCloudDatabaseAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.UpdateCloudDatabaseAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.UpdateCloudDatabaseAction();
                             if (object.instanceId != null)
                                 message.instanceId = String(object.instanceId);
@@ -62998,7 +65429,7 @@
                         function DropCloudDatabaseAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -63083,9 +65514,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        DropCloudDatabaseAction.decode = function decode(reader, length, error) {
+                        DropCloudDatabaseAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DropCloudDatabaseAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -63105,7 +65540,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -63136,9 +65571,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        DropCloudDatabaseAction.verify = function verify(message) {
+                        DropCloudDatabaseAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.instanceId != null && message.hasOwnProperty("instanceId"))
                                 if (!$util.isString(message.instanceId))
                                     return "instanceId: string expected";
@@ -63159,9 +65598,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.DropCloudDatabaseAction} DropCloudDatabaseAction
                          */
-                        DropCloudDatabaseAction.fromObject = function fromObject(object) {
+                        DropCloudDatabaseAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.DropCloudDatabaseAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.DropCloudDatabaseAction();
                             if (object.instanceId != null)
                                 message.instanceId = String(object.instanceId);
@@ -63250,7 +65693,7 @@
                             this.servingLocations = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -63335,9 +65778,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ChangeQuorumCloudDatabaseAction.decode = function decode(reader, length, error) {
+                        ChangeQuorumCloudDatabaseAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -63355,7 +65802,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -63386,9 +65833,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ChangeQuorumCloudDatabaseAction.verify = function verify(message) {
+                        ChangeQuorumCloudDatabaseAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.databaseUri != null && message.hasOwnProperty("databaseUri")) {
                                 properties._databaseUri = 1;
@@ -63413,9 +65864,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction} ChangeQuorumCloudDatabaseAction
                          */
-                        ChangeQuorumCloudDatabaseAction.fromObject = function fromObject(object) {
+                        ChangeQuorumCloudDatabaseAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ChangeQuorumCloudDatabaseAction();
                             if (object.databaseUri != null)
                                 message.databaseUri = String(object.databaseUri);
@@ -63512,7 +65967,7 @@
                             this.attachments = {};
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -63628,9 +66083,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        AdaptMessageAction.decode = function decode(reader, length, error) {
+                        AdaptMessageAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.AdaptMessageAction(), key, value;
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -63665,10 +66124,12 @@
                                                 value = reader.string();
                                                 break;
                                             default:
-                                                reader.skipType(tag2 & 7);
+                                                reader.skipType(tag2 & 7, long);
                                                 break;
                                             }
                                         }
+                                        if (key === "__proto__")
+                                            $util.makeProp(message.attachments, key);
                                         message.attachments[key] = value;
                                         break;
                                     }
@@ -63681,7 +66142,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -63712,9 +66173,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        AdaptMessageAction.verify = function verify(message) {
+                        AdaptMessageAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.databaseUri != null && message.hasOwnProperty("databaseUri"))
                                 if (!$util.isString(message.databaseUri))
                                     return "databaseUri: string expected";
@@ -63749,9 +66214,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.AdaptMessageAction} AdaptMessageAction
                          */
-                        AdaptMessageAction.fromObject = function fromObject(object) {
+                        AdaptMessageAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.AdaptMessageAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.AdaptMessageAction();
                             if (object.databaseUri != null)
                                 message.databaseUri = String(object.databaseUri);
@@ -63766,8 +66235,11 @@
                                 if (typeof object.attachments !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdaptMessageAction.attachments: object expected");
                                 message.attachments = {};
-                                for (var keys = Object.keys(object.attachments), i = 0; i < keys.length; ++i)
+                                for (var keys = Object.keys(object.attachments), i = 0; i < keys.length; ++i) {
+                                    if (keys[i] === "__proto__")
+                                        $util.makeProp(message.attachments, keys[i]);
                                     message.attachments[keys[i]] = String(object.attachments[keys[i]]);
+                                }
                             }
                             if (object.query != null)
                                 message.query = String(object.query);
@@ -63813,8 +66285,11 @@
                             var keys2;
                             if (message.attachments && (keys2 = Object.keys(message.attachments)).length) {
                                 object.attachments = {};
-                                for (var j = 0; j < keys2.length; ++j)
+                                for (var j = 0; j < keys2.length; ++j) {
+                                    if (keys2[j] === "__proto__")
+                                        $util.makeProp(object.attachments, keys2[j]);
                                     object.attachments[keys2[j]] = message.attachments[keys2[j]];
+                                }
                             }
                             if (message.query != null && message.hasOwnProperty("query"))
                                 object.query = message.query;
@@ -63875,7 +66350,7 @@
                         function ListCloudDatabasesAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -63970,9 +66445,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ListCloudDatabasesAction.decode = function decode(reader, length, error) {
+                        ListCloudDatabasesAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ListCloudDatabasesAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -63996,7 +66475,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -64027,9 +66506,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ListCloudDatabasesAction.verify = function verify(message) {
+                        ListCloudDatabasesAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -64053,9 +66536,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ListCloudDatabasesAction} ListCloudDatabasesAction
                          */
-                        ListCloudDatabasesAction.fromObject = function fromObject(object) {
+                        ListCloudDatabasesAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ListCloudDatabasesAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ListCloudDatabasesAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -64150,7 +66637,7 @@
                         function ListCloudInstancesAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -64266,9 +66753,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ListCloudInstancesAction.decode = function decode(reader, length, error) {
+                        ListCloudInstancesAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ListCloudInstancesAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -64292,7 +66783,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -64323,9 +66814,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ListCloudInstancesAction.verify = function verify(message) {
+                        ListCloudInstancesAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
@@ -64356,9 +66851,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ListCloudInstancesAction} ListCloudInstancesAction
                          */
-                        ListCloudInstancesAction.fromObject = function fromObject(object) {
+                        ListCloudInstancesAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ListCloudInstancesAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ListCloudInstancesAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -64456,7 +66955,7 @@
                         function GetCloudInstanceAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -64531,9 +67030,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        GetCloudInstanceAction.decode = function decode(reader, length, error) {
+                        GetCloudInstanceAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.GetCloudInstanceAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -64549,7 +67052,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -64580,9 +67083,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        GetCloudInstanceAction.verify = function verify(message) {
+                        GetCloudInstanceAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -64600,9 +67107,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.GetCloudInstanceAction} GetCloudInstanceAction
                          */
-                        GetCloudInstanceAction.fromObject = function fromObject(object) {
+                        GetCloudInstanceAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.GetCloudInstanceAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.GetCloudInstanceAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -64688,7 +67199,7 @@
                         function ListCloudDatabaseOperationsAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -64793,9 +67304,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ListCloudDatabaseOperationsAction.decode = function decode(reader, length, error) {
+                        ListCloudDatabaseOperationsAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -64823,7 +67338,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -64854,9 +67369,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ListCloudDatabaseOperationsAction.verify = function verify(message) {
+                        ListCloudDatabaseOperationsAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -64883,9 +67402,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ListCloudDatabaseOperationsAction} ListCloudDatabaseOperationsAction
                          */
-                        ListCloudDatabaseOperationsAction.fromObject = function fromObject(object) {
+                        ListCloudDatabaseOperationsAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ListCloudDatabaseOperationsAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -64987,7 +67510,7 @@
                         function RestoreCloudDatabaseAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -65102,9 +67625,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        RestoreCloudDatabaseAction.decode = function decode(reader, length, error) {
+                        RestoreCloudDatabaseAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.RestoreCloudDatabaseAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -65132,11 +67659,11 @@
                                         break;
                                     }
                                 case 7: {
-                                        message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32());
+                                        message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -65167,9 +67694,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        RestoreCloudDatabaseAction.verify = function verify(message) {
+                        RestoreCloudDatabaseAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -65186,7 +67717,7 @@
                                 if (!$util.isString(message.databaseId))
                                     return "databaseId: string expected";
                             if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig);
+                                var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig, long + 1);
                                 if (error)
                                     return "encryptionConfig." + error;
                             }
@@ -65201,9 +67732,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.RestoreCloudDatabaseAction} RestoreCloudDatabaseAction
                          */
-                        RestoreCloudDatabaseAction.fromObject = function fromObject(object) {
+                        RestoreCloudDatabaseAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.RestoreCloudDatabaseAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.RestoreCloudDatabaseAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -65218,7 +67753,7 @@
                             if (object.encryptionConfig != null) {
                                 if (typeof object.encryptionConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.RestoreCloudDatabaseAction.encryptionConfig: object expected");
-                                message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig);
+                                message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                             }
                             return message;
                         };
@@ -65310,7 +67845,7 @@
                         function GetCloudDatabaseAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -65395,9 +67930,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        GetCloudDatabaseAction.decode = function decode(reader, length, error) {
+                        GetCloudDatabaseAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.GetCloudDatabaseAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -65417,7 +67956,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -65448,9 +67987,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        GetCloudDatabaseAction.verify = function verify(message) {
+                        GetCloudDatabaseAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -65471,9 +68014,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.GetCloudDatabaseAction} GetCloudDatabaseAction
                          */
-                        GetCloudDatabaseAction.fromObject = function fromObject(object) {
+                        GetCloudDatabaseAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.GetCloudDatabaseAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.GetCloudDatabaseAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -65566,7 +68113,7 @@
                         function CreateCloudBackupAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -65700,9 +68247,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CreateCloudBackupAction.decode = function decode(reader, length, error) {
+                        CreateCloudBackupAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CreateCloudBackupAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -65726,19 +68277,19 @@
                                         break;
                                     }
                                 case 5: {
-                                        message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 6: {
-                                        message.versionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.versionTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 7: {
-                                        message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32());
+                                        message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -65769,9 +68320,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CreateCloudBackupAction.verify = function verify(message) {
+                        CreateCloudBackupAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
@@ -65786,20 +68341,20 @@
                                 if (!$util.isString(message.databaseId))
                                     return "databaseId: string expected";
                             if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.expireTime, long + 1);
                                 if (error)
                                     return "expireTime." + error;
                             }
                             if (message.versionTime != null && message.hasOwnProperty("versionTime")) {
                                 properties._versionTime = 1;
                                 {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.versionTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.versionTime, long + 1);
                                     if (error)
                                         return "versionTime." + error;
                                 }
                             }
                             if (message.encryptionConfig != null && message.hasOwnProperty("encryptionConfig")) {
-                                var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig);
+                                var error = $root.google.spanner.admin.database.v1.EncryptionConfig.verify(message.encryptionConfig, long + 1);
                                 if (error)
                                     return "encryptionConfig." + error;
                             }
@@ -65814,9 +68369,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CreateCloudBackupAction} CreateCloudBackupAction
                          */
-                        CreateCloudBackupAction.fromObject = function fromObject(object) {
+                        CreateCloudBackupAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CreateCloudBackupAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CreateCloudBackupAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -65829,17 +68388,17 @@
                             if (object.expireTime != null) {
                                 if (typeof object.expireTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CreateCloudBackupAction.expireTime: object expected");
-                                message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                                message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime, long + 1);
                             }
                             if (object.versionTime != null) {
                                 if (typeof object.versionTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CreateCloudBackupAction.versionTime: object expected");
-                                message.versionTime = $root.google.protobuf.Timestamp.fromObject(object.versionTime);
+                                message.versionTime = $root.google.protobuf.Timestamp.fromObject(object.versionTime, long + 1);
                             }
                             if (object.encryptionConfig != null) {
                                 if (typeof object.encryptionConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CreateCloudBackupAction.encryptionConfig: object expected");
-                                message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig);
+                                message.encryptionConfig = $root.google.spanner.admin.database.v1.EncryptionConfig.fromObject(object.encryptionConfig, long + 1);
                             }
                             return message;
                         };
@@ -65938,7 +68497,7 @@
                         function CopyCloudBackupAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -66043,9 +68602,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CopyCloudBackupAction.decode = function decode(reader, length, error) {
+                        CopyCloudBackupAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CopyCloudBackupAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -66069,11 +68632,11 @@
                                         break;
                                     }
                                 case 5: {
-                                        message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -66104,9 +68667,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CopyCloudBackupAction.verify = function verify(message) {
+                        CopyCloudBackupAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -66120,7 +68687,7 @@
                                 if (!$util.isString(message.sourceBackup))
                                     return "sourceBackup: string expected";
                             if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.expireTime, long + 1);
                                 if (error)
                                     return "expireTime." + error;
                             }
@@ -66135,9 +68702,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CopyCloudBackupAction} CopyCloudBackupAction
                          */
-                        CopyCloudBackupAction.fromObject = function fromObject(object) {
+                        CopyCloudBackupAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CopyCloudBackupAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CopyCloudBackupAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -66150,7 +68721,7 @@
                             if (object.expireTime != null) {
                                 if (typeof object.expireTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CopyCloudBackupAction.expireTime: object expected");
-                                message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                                message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime, long + 1);
                             }
                             return message;
                         };
@@ -66239,7 +68810,7 @@
                         function GetCloudBackupAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -66324,9 +68895,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        GetCloudBackupAction.decode = function decode(reader, length, error) {
+                        GetCloudBackupAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.GetCloudBackupAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -66346,7 +68921,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -66377,9 +68952,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        GetCloudBackupAction.verify = function verify(message) {
+                        GetCloudBackupAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -66400,9 +68979,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.GetCloudBackupAction} GetCloudBackupAction
                          */
-                        GetCloudBackupAction.fromObject = function fromObject(object) {
+                        GetCloudBackupAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.GetCloudBackupAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.GetCloudBackupAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -66492,7 +69075,7 @@
                         function UpdateCloudBackupAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -66587,9 +69170,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        UpdateCloudBackupAction.decode = function decode(reader, length, error) {
+                        UpdateCloudBackupAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.UpdateCloudBackupAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -66609,11 +69196,11 @@
                                         break;
                                     }
                                 case 4: {
-                                        message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -66644,9 +69231,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        UpdateCloudBackupAction.verify = function verify(message) {
+                        UpdateCloudBackupAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -66657,7 +69248,7 @@
                                 if (!$util.isString(message.backupId))
                                     return "backupId: string expected";
                             if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.expireTime, long + 1);
                                 if (error)
                                     return "expireTime." + error;
                             }
@@ -66672,9 +69263,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.UpdateCloudBackupAction} UpdateCloudBackupAction
                          */
-                        UpdateCloudBackupAction.fromObject = function fromObject(object) {
+                        UpdateCloudBackupAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.UpdateCloudBackupAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.UpdateCloudBackupAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -66685,7 +69280,7 @@
                             if (object.expireTime != null) {
                                 if (typeof object.expireTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.UpdateCloudBackupAction.expireTime: object expected");
-                                message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                                message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime, long + 1);
                             }
                             return message;
                         };
@@ -66771,7 +69366,7 @@
                         function DeleteCloudBackupAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -66856,9 +69451,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        DeleteCloudBackupAction.decode = function decode(reader, length, error) {
+                        DeleteCloudBackupAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DeleteCloudBackupAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -66878,7 +69477,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -66909,9 +69508,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        DeleteCloudBackupAction.verify = function verify(message) {
+                        DeleteCloudBackupAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -66932,9 +69535,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.DeleteCloudBackupAction} DeleteCloudBackupAction
                          */
-                        DeleteCloudBackupAction.fromObject = function fromObject(object) {
+                        DeleteCloudBackupAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.DeleteCloudBackupAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.DeleteCloudBackupAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -67025,7 +69632,7 @@
                         function ListCloudBackupsAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -67130,9 +69737,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ListCloudBackupsAction.decode = function decode(reader, length, error) {
+                        ListCloudBackupsAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ListCloudBackupsAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -67160,7 +69771,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -67191,9 +69802,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ListCloudBackupsAction.verify = function verify(message) {
+                        ListCloudBackupsAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -67220,9 +69835,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ListCloudBackupsAction} ListCloudBackupsAction
                          */
-                        ListCloudBackupsAction.fromObject = function fromObject(object) {
+                        ListCloudBackupsAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ListCloudBackupsAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ListCloudBackupsAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -67323,7 +69942,7 @@
                         function ListCloudBackupOperationsAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -67428,9 +70047,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ListCloudBackupOperationsAction.decode = function decode(reader, length, error) {
+                        ListCloudBackupOperationsAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ListCloudBackupOperationsAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -67458,7 +70081,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -67489,9 +70112,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ListCloudBackupOperationsAction.verify = function verify(message) {
+                        ListCloudBackupOperationsAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -67518,9 +70145,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ListCloudBackupOperationsAction} ListCloudBackupOperationsAction
                          */
-                        ListCloudBackupOperationsAction.fromObject = function fromObject(object) {
+                        ListCloudBackupOperationsAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ListCloudBackupOperationsAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ListCloudBackupOperationsAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -67617,7 +70248,7 @@
                         function GetOperationAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -67682,9 +70313,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        GetOperationAction.decode = function decode(reader, length, error) {
+                        GetOperationAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.GetOperationAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -67696,7 +70331,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -67727,9 +70362,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        GetOperationAction.verify = function verify(message) {
+                        GetOperationAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.operation != null && message.hasOwnProperty("operation"))
                                 if (!$util.isString(message.operation))
                                     return "operation: string expected";
@@ -67744,9 +70383,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.GetOperationAction} GetOperationAction
                          */
-                        GetOperationAction.fromObject = function fromObject(object) {
+                        GetOperationAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.GetOperationAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.GetOperationAction();
                             if (object.operation != null)
                                 message.operation = String(object.operation);
@@ -67823,7 +70466,7 @@
                         function QueryCancellationAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -67898,9 +70541,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        QueryCancellationAction.decode = function decode(reader, length, error) {
+                        QueryCancellationAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.QueryCancellationAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -67916,7 +70563,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -67947,9 +70594,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        QueryCancellationAction.verify = function verify(message) {
+                        QueryCancellationAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.longRunningSql != null && message.hasOwnProperty("longRunningSql"))
                                 if (!$util.isString(message.longRunningSql))
                                     return "longRunningSql: string expected";
@@ -67967,9 +70618,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.QueryCancellationAction} QueryCancellationAction
                          */
-                        QueryCancellationAction.fromObject = function fromObject(object) {
+                        QueryCancellationAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.QueryCancellationAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.QueryCancellationAction();
                             if (object.longRunningSql != null)
                                 message.longRunningSql = String(object.longRunningSql);
@@ -68051,7 +70706,7 @@
                         function CancelOperationAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -68116,9 +70771,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CancelOperationAction.decode = function decode(reader, length, error) {
+                        CancelOperationAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CancelOperationAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -68130,7 +70789,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -68161,9 +70820,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CancelOperationAction.verify = function verify(message) {
+                        CancelOperationAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.operation != null && message.hasOwnProperty("operation"))
                                 if (!$util.isString(message.operation))
                                     return "operation: string expected";
@@ -68178,9 +70841,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CancelOperationAction} CancelOperationAction
                          */
-                        CancelOperationAction.fromObject = function fromObject(object) {
+                        CancelOperationAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CancelOperationAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CancelOperationAction();
                             if (object.operation != null)
                                 message.operation = String(object.operation);
@@ -68260,7 +70927,7 @@
                             this.splitPoints = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -68356,9 +71023,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        AddSplitPointsAction.decode = function decode(reader, length, error) {
+                        AddSplitPointsAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.AddSplitPointsAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -68380,11 +71051,11 @@
                                 case 4: {
                                         if (!(message.splitPoints && message.splitPoints.length))
                                             message.splitPoints = [];
-                                        message.splitPoints.push($root.google.spanner.admin.database.v1.SplitPoints.decode(reader, reader.uint32()));
+                                        message.splitPoints.push($root.google.spanner.admin.database.v1.SplitPoints.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -68415,9 +71086,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        AddSplitPointsAction.verify = function verify(message) {
+                        AddSplitPointsAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.projectId != null && message.hasOwnProperty("projectId"))
                                 if (!$util.isString(message.projectId))
                                     return "projectId: string expected";
@@ -68431,7 +71106,7 @@
                                 if (!Array.isArray(message.splitPoints))
                                     return "splitPoints: array expected";
                                 for (var i = 0; i < message.splitPoints.length; ++i) {
-                                    var error = $root.google.spanner.admin.database.v1.SplitPoints.verify(message.splitPoints[i]);
+                                    var error = $root.google.spanner.admin.database.v1.SplitPoints.verify(message.splitPoints[i], long + 1);
                                     if (error)
                                         return "splitPoints." + error;
                                 }
@@ -68447,9 +71122,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.AddSplitPointsAction} AddSplitPointsAction
                          */
-                        AddSplitPointsAction.fromObject = function fromObject(object) {
+                        AddSplitPointsAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.AddSplitPointsAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.AddSplitPointsAction();
                             if (object.projectId != null)
                                 message.projectId = String(object.projectId);
@@ -68464,7 +71143,7 @@
                                 for (var i = 0; i < object.splitPoints.length; ++i) {
                                     if (typeof object.splitPoints[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.AddSplitPointsAction.splitPoints: object expected");
-                                    message.splitPoints[i] = $root.google.spanner.admin.database.v1.SplitPoints.fromObject(object.splitPoints[i]);
+                                    message.splitPoints[i] = $root.google.spanner.admin.database.v1.SplitPoints.fromObject(object.splitPoints[i], long + 1);
                                 }
                             }
                             return message;
@@ -68555,7 +71234,7 @@
                         function StartBatchTransactionAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -68654,9 +71333,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        StartBatchTransactionAction.decode = function decode(reader, length, error) {
+                        StartBatchTransactionAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.StartBatchTransactionAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -68664,7 +71347,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.batchTxnTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.batchTxnTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -68676,7 +71359,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -68707,14 +71390,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        StartBatchTransactionAction.verify = function verify(message) {
+                        StartBatchTransactionAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.batchTxnTime != null && message.hasOwnProperty("batchTxnTime")) {
                                 properties.param = 1;
                                 {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.batchTxnTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.batchTxnTime, long + 1);
                                     if (error)
                                         return "batchTxnTime." + error;
                                 }
@@ -68740,14 +71427,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.StartBatchTransactionAction} StartBatchTransactionAction
                          */
-                        StartBatchTransactionAction.fromObject = function fromObject(object) {
+                        StartBatchTransactionAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.StartBatchTransactionAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.StartBatchTransactionAction();
                             if (object.batchTxnTime != null) {
                                 if (typeof object.batchTxnTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.StartBatchTransactionAction.batchTxnTime: object expected");
-                                message.batchTxnTime = $root.google.protobuf.Timestamp.fromObject(object.batchTxnTime);
+                                message.batchTxnTime = $root.google.protobuf.Timestamp.fromObject(object.batchTxnTime, long + 1);
                             }
                             if (object.tid != null)
                                 if (typeof object.tid === "string")
@@ -68838,7 +71529,7 @@
                         function CloseBatchTransactionAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -68903,9 +71594,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CloseBatchTransactionAction.decode = function decode(reader, length, error) {
+                        CloseBatchTransactionAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CloseBatchTransactionAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -68917,7 +71612,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -68948,9 +71643,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CloseBatchTransactionAction.verify = function verify(message) {
+                        CloseBatchTransactionAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.cleanup != null && message.hasOwnProperty("cleanup"))
                                 if (typeof message.cleanup !== "boolean")
                                     return "cleanup: boolean expected";
@@ -68965,9 +71664,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CloseBatchTransactionAction} CloseBatchTransactionAction
                          */
-                        CloseBatchTransactionAction.fromObject = function fromObject(object) {
+                        CloseBatchTransactionAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CloseBatchTransactionAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CloseBatchTransactionAction();
                             if (object.cleanup != null)
                                 message.cleanup = Boolean(object.cleanup);
@@ -69047,7 +71750,7 @@
                             this.table = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -69158,9 +71861,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        GenerateDbPartitionsForReadAction.decode = function decode(reader, length, error) {
+                        GenerateDbPartitionsForReadAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -69168,13 +71875,13 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.read = $root.google.spanner.executor.v1.ReadAction.decode(reader, reader.uint32());
+                                        message.read = $root.google.spanner.executor.v1.ReadAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
                                         if (!(message.table && message.table.length))
                                             message.table = [];
-                                        message.table.push($root.google.spanner.executor.v1.TableMetadata.decode(reader, reader.uint32()));
+                                        message.table.push($root.google.spanner.executor.v1.TableMetadata.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 3: {
@@ -69186,7 +71893,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -69217,12 +71924,16 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        GenerateDbPartitionsForReadAction.verify = function verify(message) {
+                        GenerateDbPartitionsForReadAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.read != null && message.hasOwnProperty("read")) {
-                                var error = $root.google.spanner.executor.v1.ReadAction.verify(message.read);
+                                var error = $root.google.spanner.executor.v1.ReadAction.verify(message.read, long + 1);
                                 if (error)
                                     return "read." + error;
                             }
@@ -69230,7 +71941,7 @@
                                 if (!Array.isArray(message.table))
                                     return "table: array expected";
                                 for (var i = 0; i < message.table.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.TableMetadata.verify(message.table[i]);
+                                    var error = $root.google.spanner.executor.v1.TableMetadata.verify(message.table[i], long + 1);
                                     if (error)
                                         return "table." + error;
                                 }
@@ -69256,14 +71967,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.GenerateDbPartitionsForReadAction} GenerateDbPartitionsForReadAction
                          */
-                        GenerateDbPartitionsForReadAction.fromObject = function fromObject(object) {
+                        GenerateDbPartitionsForReadAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.GenerateDbPartitionsForReadAction();
                             if (object.read != null) {
                                 if (typeof object.read !== "object")
                                     throw TypeError(".google.spanner.executor.v1.GenerateDbPartitionsForReadAction.read: object expected");
-                                message.read = $root.google.spanner.executor.v1.ReadAction.fromObject(object.read);
+                                message.read = $root.google.spanner.executor.v1.ReadAction.fromObject(object.read, long + 1);
                             }
                             if (object.table) {
                                 if (!Array.isArray(object.table))
@@ -69272,7 +71987,7 @@
                                 for (var i = 0; i < object.table.length; ++i) {
                                     if (typeof object.table[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.GenerateDbPartitionsForReadAction.table: object expected");
-                                    message.table[i] = $root.google.spanner.executor.v1.TableMetadata.fromObject(object.table[i]);
+                                    message.table[i] = $root.google.spanner.executor.v1.TableMetadata.fromObject(object.table[i], long + 1);
                                 }
                             }
                             if (object.desiredBytesPerPartition != null)
@@ -69389,7 +72104,7 @@
                         function GenerateDbPartitionsForQueryAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -69473,9 +72188,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        GenerateDbPartitionsForQueryAction.decode = function decode(reader, length, error) {
+                        GenerateDbPartitionsForQueryAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -69483,7 +72202,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.query = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32());
+                                        message.query = $root.google.spanner.executor.v1.QueryAction.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -69491,7 +72210,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -69522,12 +72241,16 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        GenerateDbPartitionsForQueryAction.verify = function verify(message) {
+                        GenerateDbPartitionsForQueryAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.query != null && message.hasOwnProperty("query")) {
-                                var error = $root.google.spanner.executor.v1.QueryAction.verify(message.query);
+                                var error = $root.google.spanner.executor.v1.QueryAction.verify(message.query, long + 1);
                                 if (error)
                                     return "query." + error;
                             }
@@ -69547,14 +72270,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.GenerateDbPartitionsForQueryAction} GenerateDbPartitionsForQueryAction
                          */
-                        GenerateDbPartitionsForQueryAction.fromObject = function fromObject(object) {
+                        GenerateDbPartitionsForQueryAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.GenerateDbPartitionsForQueryAction();
                             if (object.query != null) {
                                 if (typeof object.query !== "object")
                                     throw TypeError(".google.spanner.executor.v1.GenerateDbPartitionsForQueryAction.query: object expected");
-                                message.query = $root.google.spanner.executor.v1.QueryAction.fromObject(object.query);
+                                message.query = $root.google.spanner.executor.v1.QueryAction.fromObject(object.query, long + 1);
                             }
                             if (object.desiredBytesPerPartition != null)
                                 if ($util.Long)
@@ -69648,7 +72375,7 @@
                         function BatchPartition(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -69758,9 +72485,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        BatchPartition.decode = function decode(reader, length, error) {
+                        BatchPartition.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.BatchPartition();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -69784,7 +72515,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -69815,9 +72546,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        BatchPartition.verify = function verify(message) {
+                        BatchPartition.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.partition != null && message.hasOwnProperty("partition"))
                                 if (!(message.partition && typeof message.partition.length === "number" || $util.isString(message.partition)))
@@ -69846,9 +72581,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.BatchPartition} BatchPartition
                          */
-                        BatchPartition.fromObject = function fromObject(object) {
+                        BatchPartition.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.BatchPartition)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.BatchPartition();
                             if (object.partition != null)
                                 if (typeof object.partition === "string")
@@ -69962,7 +72701,7 @@
                         function ExecutePartitionAction(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -70027,9 +72766,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ExecutePartitionAction.decode = function decode(reader, length, error) {
+                        ExecutePartitionAction.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ExecutePartitionAction();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -70037,11 +72780,11 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.partition = $root.google.spanner.executor.v1.BatchPartition.decode(reader, reader.uint32());
+                                        message.partition = $root.google.spanner.executor.v1.BatchPartition.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -70072,11 +72815,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ExecutePartitionAction.verify = function verify(message) {
+                        ExecutePartitionAction.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.partition != null && message.hasOwnProperty("partition")) {
-                                var error = $root.google.spanner.executor.v1.BatchPartition.verify(message.partition);
+                                var error = $root.google.spanner.executor.v1.BatchPartition.verify(message.partition, long + 1);
                                 if (error)
                                     return "partition." + error;
                             }
@@ -70091,14 +72838,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ExecutePartitionAction} ExecutePartitionAction
                          */
-                        ExecutePartitionAction.fromObject = function fromObject(object) {
+                        ExecutePartitionAction.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ExecutePartitionAction)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ExecutePartitionAction();
                             if (object.partition != null) {
                                 if (typeof object.partition !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ExecutePartitionAction.partition: object expected");
-                                message.partition = $root.google.spanner.executor.v1.BatchPartition.fromObject(object.partition);
+                                message.partition = $root.google.spanner.executor.v1.BatchPartition.fromObject(object.partition, long + 1);
                             }
                             return message;
                         };
@@ -70180,7 +72931,7 @@
                             this.readOptions = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -70349,9 +73100,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ExecuteChangeStreamQuery.decode = function decode(reader, length, error) {
+                        ExecuteChangeStreamQuery.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ExecuteChangeStreamQuery();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -70363,11 +73118,11 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
-                                        message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 4: {
@@ -70393,7 +73148,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -70424,22 +73179,26 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ExecuteChangeStreamQuery.verify = function verify(message) {
+                        ExecuteChangeStreamQuery.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.name != null && message.hasOwnProperty("name"))
                                 if (!$util.isString(message.name))
                                     return "name: string expected";
                             if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                 if (error)
                                     return "startTime." + error;
                             }
                             if (message.endTime != null && message.hasOwnProperty("endTime")) {
                                 properties._endTime = 1;
                                 {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.endTime, long + 1);
                                     if (error)
                                         return "endTime." + error;
                                 }
@@ -70482,21 +73241,25 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ExecuteChangeStreamQuery} ExecuteChangeStreamQuery
                          */
-                        ExecuteChangeStreamQuery.fromObject = function fromObject(object) {
+                        ExecuteChangeStreamQuery.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ExecuteChangeStreamQuery)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ExecuteChangeStreamQuery();
                             if (object.name != null)
                                 message.name = String(object.name);
                             if (object.startTime != null) {
                                 if (typeof object.startTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ExecuteChangeStreamQuery.startTime: object expected");
-                                message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                             }
                             if (object.endTime != null) {
                                 if (typeof object.endTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ExecuteChangeStreamQuery.endTime: object expected");
-                                message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                                message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime, long + 1);
                             }
                             if (object.partitionToken != null)
                                 message.partitionToken = String(object.partitionToken);
@@ -70644,7 +73407,7 @@
                             this.changeStreamRecords = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -70866,9 +73629,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        SpannerActionOutcome.decode = function decode(reader, length, error) {
+                        SpannerActionOutcome.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.SpannerActionOutcome();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -70876,19 +73643,19 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.status = $root.google.rpc.Status.decode(reader, reader.uint32());
+                                        message.status = $root.google.rpc.Status.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
-                                        message.commitTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.commitTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
-                                        message.readResult = $root.google.spanner.executor.v1.ReadResult.decode(reader, reader.uint32());
+                                        message.readResult = $root.google.spanner.executor.v1.ReadResult.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 4: {
-                                        message.queryResult = $root.google.spanner.executor.v1.QueryResult.decode(reader, reader.uint32());
+                                        message.queryResult = $root.google.spanner.executor.v1.QueryResult.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 5: {
@@ -70902,11 +73669,11 @@
                                 case 7: {
                                         if (!(message.dbPartition && message.dbPartition.length))
                                             message.dbPartition = [];
-                                        message.dbPartition.push($root.google.spanner.executor.v1.BatchPartition.decode(reader, reader.uint32()));
+                                        message.dbPartition.push($root.google.spanner.executor.v1.BatchPartition.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 8: {
-                                        message.adminResult = $root.google.spanner.executor.v1.AdminResult.decode(reader, reader.uint32());
+                                        message.adminResult = $root.google.spanner.executor.v1.AdminResult.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 9: {
@@ -70923,7 +73690,7 @@
                                 case 10: {
                                         if (!(message.changeStreamRecords && message.changeStreamRecords.length))
                                             message.changeStreamRecords = [];
-                                        message.changeStreamRecords.push($root.google.spanner.executor.v1.ChangeStreamRecord.decode(reader, reader.uint32()));
+                                        message.changeStreamRecords.push($root.google.spanner.executor.v1.ChangeStreamRecord.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 11: {
@@ -70931,7 +73698,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -70962,14 +73729,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        SpannerActionOutcome.verify = function verify(message) {
+                        SpannerActionOutcome.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.status != null && message.hasOwnProperty("status")) {
                                 properties._status = 1;
                                 {
-                                    var error = $root.google.rpc.Status.verify(message.status);
+                                    var error = $root.google.rpc.Status.verify(message.status, long + 1);
                                     if (error)
                                         return "status." + error;
                                 }
@@ -70977,7 +73748,7 @@
                             if (message.commitTime != null && message.hasOwnProperty("commitTime")) {
                                 properties._commitTime = 1;
                                 {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.commitTime);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.commitTime, long + 1);
                                     if (error)
                                         return "commitTime." + error;
                                 }
@@ -70985,7 +73756,7 @@
                             if (message.readResult != null && message.hasOwnProperty("readResult")) {
                                 properties._readResult = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ReadResult.verify(message.readResult);
+                                    var error = $root.google.spanner.executor.v1.ReadResult.verify(message.readResult, long + 1);
                                     if (error)
                                         return "readResult." + error;
                                 }
@@ -70993,7 +73764,7 @@
                             if (message.queryResult != null && message.hasOwnProperty("queryResult")) {
                                 properties._queryResult = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.QueryResult.verify(message.queryResult);
+                                    var error = $root.google.spanner.executor.v1.QueryResult.verify(message.queryResult, long + 1);
                                     if (error)
                                         return "queryResult." + error;
                                 }
@@ -71012,7 +73783,7 @@
                                 if (!Array.isArray(message.dbPartition))
                                     return "dbPartition: array expected";
                                 for (var i = 0; i < message.dbPartition.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.BatchPartition.verify(message.dbPartition[i]);
+                                    var error = $root.google.spanner.executor.v1.BatchPartition.verify(message.dbPartition[i], long + 1);
                                     if (error)
                                         return "dbPartition." + error;
                                 }
@@ -71020,7 +73791,7 @@
                             if (message.adminResult != null && message.hasOwnProperty("adminResult")) {
                                 properties._adminResult = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.AdminResult.verify(message.adminResult);
+                                    var error = $root.google.spanner.executor.v1.AdminResult.verify(message.adminResult, long + 1);
                                     if (error)
                                         return "adminResult." + error;
                                 }
@@ -71036,7 +73807,7 @@
                                 if (!Array.isArray(message.changeStreamRecords))
                                     return "changeStreamRecords: array expected";
                                 for (var i = 0; i < message.changeStreamRecords.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.ChangeStreamRecord.verify(message.changeStreamRecords[i]);
+                                    var error = $root.google.spanner.executor.v1.ChangeStreamRecord.verify(message.changeStreamRecords[i], long + 1);
                                     if (error)
                                         return "changeStreamRecords." + error;
                                 }
@@ -71057,29 +73828,33 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.SpannerActionOutcome} SpannerActionOutcome
                          */
-                        SpannerActionOutcome.fromObject = function fromObject(object) {
+                        SpannerActionOutcome.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.SpannerActionOutcome)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.SpannerActionOutcome();
                             if (object.status != null) {
                                 if (typeof object.status !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerActionOutcome.status: object expected");
-                                message.status = $root.google.rpc.Status.fromObject(object.status);
+                                message.status = $root.google.rpc.Status.fromObject(object.status, long + 1);
                             }
                             if (object.commitTime != null) {
                                 if (typeof object.commitTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerActionOutcome.commitTime: object expected");
-                                message.commitTime = $root.google.protobuf.Timestamp.fromObject(object.commitTime);
+                                message.commitTime = $root.google.protobuf.Timestamp.fromObject(object.commitTime, long + 1);
                             }
                             if (object.readResult != null) {
                                 if (typeof object.readResult !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerActionOutcome.readResult: object expected");
-                                message.readResult = $root.google.spanner.executor.v1.ReadResult.fromObject(object.readResult);
+                                message.readResult = $root.google.spanner.executor.v1.ReadResult.fromObject(object.readResult, long + 1);
                             }
                             if (object.queryResult != null) {
                                 if (typeof object.queryResult !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerActionOutcome.queryResult: object expected");
-                                message.queryResult = $root.google.spanner.executor.v1.QueryResult.fromObject(object.queryResult);
+                                message.queryResult = $root.google.spanner.executor.v1.QueryResult.fromObject(object.queryResult, long + 1);
                             }
                             if (object.transactionRestarted != null)
                                 message.transactionRestarted = Boolean(object.transactionRestarted);
@@ -71095,13 +73870,13 @@
                                 for (var i = 0; i < object.dbPartition.length; ++i) {
                                     if (typeof object.dbPartition[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.SpannerActionOutcome.dbPartition: object expected");
-                                    message.dbPartition[i] = $root.google.spanner.executor.v1.BatchPartition.fromObject(object.dbPartition[i]);
+                                    message.dbPartition[i] = $root.google.spanner.executor.v1.BatchPartition.fromObject(object.dbPartition[i], long + 1);
                                 }
                             }
                             if (object.adminResult != null) {
                                 if (typeof object.adminResult !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerActionOutcome.adminResult: object expected");
-                                message.adminResult = $root.google.spanner.executor.v1.AdminResult.fromObject(object.adminResult);
+                                message.adminResult = $root.google.spanner.executor.v1.AdminResult.fromObject(object.adminResult, long + 1);
                             }
                             if (object.dmlRowsModified) {
                                 if (!Array.isArray(object.dmlRowsModified))
@@ -71124,7 +73899,7 @@
                                 for (var i = 0; i < object.changeStreamRecords.length; ++i) {
                                     if (typeof object.changeStreamRecords[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.SpannerActionOutcome.changeStreamRecords: object expected");
-                                    message.changeStreamRecords[i] = $root.google.spanner.executor.v1.ChangeStreamRecord.fromObject(object.changeStreamRecords[i]);
+                                    message.changeStreamRecords[i] = $root.google.spanner.executor.v1.ChangeStreamRecord.fromObject(object.changeStreamRecords[i], long + 1);
                                 }
                             }
                             if (object.snapshotIsolationTxnReadTimestamp != null)
@@ -71274,7 +74049,7 @@
                         function AdminResult(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -71379,9 +74154,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        AdminResult.decode = function decode(reader, length, error) {
+                        AdminResult.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.AdminResult();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -71389,27 +74168,27 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.backupResponse = $root.google.spanner.executor.v1.CloudBackupResponse.decode(reader, reader.uint32());
+                                        message.backupResponse = $root.google.spanner.executor.v1.CloudBackupResponse.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
-                                        message.operationResponse = $root.google.spanner.executor.v1.OperationResponse.decode(reader, reader.uint32());
+                                        message.operationResponse = $root.google.spanner.executor.v1.OperationResponse.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
-                                        message.databaseResponse = $root.google.spanner.executor.v1.CloudDatabaseResponse.decode(reader, reader.uint32());
+                                        message.databaseResponse = $root.google.spanner.executor.v1.CloudDatabaseResponse.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 4: {
-                                        message.instanceResponse = $root.google.spanner.executor.v1.CloudInstanceResponse.decode(reader, reader.uint32());
+                                        message.instanceResponse = $root.google.spanner.executor.v1.CloudInstanceResponse.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 5: {
-                                        message.instanceConfigResponse = $root.google.spanner.executor.v1.CloudInstanceConfigResponse.decode(reader, reader.uint32());
+                                        message.instanceConfigResponse = $root.google.spanner.executor.v1.CloudInstanceConfigResponse.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -71440,31 +74219,35 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        AdminResult.verify = function verify(message) {
+                        AdminResult.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.backupResponse != null && message.hasOwnProperty("backupResponse")) {
-                                var error = $root.google.spanner.executor.v1.CloudBackupResponse.verify(message.backupResponse);
+                                var error = $root.google.spanner.executor.v1.CloudBackupResponse.verify(message.backupResponse, long + 1);
                                 if (error)
                                     return "backupResponse." + error;
                             }
                             if (message.operationResponse != null && message.hasOwnProperty("operationResponse")) {
-                                var error = $root.google.spanner.executor.v1.OperationResponse.verify(message.operationResponse);
+                                var error = $root.google.spanner.executor.v1.OperationResponse.verify(message.operationResponse, long + 1);
                                 if (error)
                                     return "operationResponse." + error;
                             }
                             if (message.databaseResponse != null && message.hasOwnProperty("databaseResponse")) {
-                                var error = $root.google.spanner.executor.v1.CloudDatabaseResponse.verify(message.databaseResponse);
+                                var error = $root.google.spanner.executor.v1.CloudDatabaseResponse.verify(message.databaseResponse, long + 1);
                                 if (error)
                                     return "databaseResponse." + error;
                             }
                             if (message.instanceResponse != null && message.hasOwnProperty("instanceResponse")) {
-                                var error = $root.google.spanner.executor.v1.CloudInstanceResponse.verify(message.instanceResponse);
+                                var error = $root.google.spanner.executor.v1.CloudInstanceResponse.verify(message.instanceResponse, long + 1);
                                 if (error)
                                     return "instanceResponse." + error;
                             }
                             if (message.instanceConfigResponse != null && message.hasOwnProperty("instanceConfigResponse")) {
-                                var error = $root.google.spanner.executor.v1.CloudInstanceConfigResponse.verify(message.instanceConfigResponse);
+                                var error = $root.google.spanner.executor.v1.CloudInstanceConfigResponse.verify(message.instanceConfigResponse, long + 1);
                                 if (error)
                                     return "instanceConfigResponse." + error;
                             }
@@ -71479,34 +74262,38 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.AdminResult} AdminResult
                          */
-                        AdminResult.fromObject = function fromObject(object) {
+                        AdminResult.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.AdminResult)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.AdminResult();
                             if (object.backupResponse != null) {
                                 if (typeof object.backupResponse !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminResult.backupResponse: object expected");
-                                message.backupResponse = $root.google.spanner.executor.v1.CloudBackupResponse.fromObject(object.backupResponse);
+                                message.backupResponse = $root.google.spanner.executor.v1.CloudBackupResponse.fromObject(object.backupResponse, long + 1);
                             }
                             if (object.operationResponse != null) {
                                 if (typeof object.operationResponse !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminResult.operationResponse: object expected");
-                                message.operationResponse = $root.google.spanner.executor.v1.OperationResponse.fromObject(object.operationResponse);
+                                message.operationResponse = $root.google.spanner.executor.v1.OperationResponse.fromObject(object.operationResponse, long + 1);
                             }
                             if (object.databaseResponse != null) {
                                 if (typeof object.databaseResponse !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminResult.databaseResponse: object expected");
-                                message.databaseResponse = $root.google.spanner.executor.v1.CloudDatabaseResponse.fromObject(object.databaseResponse);
+                                message.databaseResponse = $root.google.spanner.executor.v1.CloudDatabaseResponse.fromObject(object.databaseResponse, long + 1);
                             }
                             if (object.instanceResponse != null) {
                                 if (typeof object.instanceResponse !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminResult.instanceResponse: object expected");
-                                message.instanceResponse = $root.google.spanner.executor.v1.CloudInstanceResponse.fromObject(object.instanceResponse);
+                                message.instanceResponse = $root.google.spanner.executor.v1.CloudInstanceResponse.fromObject(object.instanceResponse, long + 1);
                             }
                             if (object.instanceConfigResponse != null) {
                                 if (typeof object.instanceConfigResponse !== "object")
                                     throw TypeError(".google.spanner.executor.v1.AdminResult.instanceConfigResponse: object expected");
-                                message.instanceConfigResponse = $root.google.spanner.executor.v1.CloudInstanceConfigResponse.fromObject(object.instanceConfigResponse);
+                                message.instanceConfigResponse = $root.google.spanner.executor.v1.CloudInstanceConfigResponse.fromObject(object.instanceConfigResponse, long + 1);
                             }
                             return message;
                         };
@@ -71598,7 +74385,7 @@
                             this.listedBackupOperations = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -71695,9 +74482,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CloudBackupResponse.decode = function decode(reader, length, error) {
+                        CloudBackupResponse.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CloudBackupResponse();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -71707,13 +74498,13 @@
                                 case 1: {
                                         if (!(message.listedBackups && message.listedBackups.length))
                                             message.listedBackups = [];
-                                        message.listedBackups.push($root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32()));
+                                        message.listedBackups.push($root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
                                         if (!(message.listedBackupOperations && message.listedBackupOperations.length))
                                             message.listedBackupOperations = [];
-                                        message.listedBackupOperations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                        message.listedBackupOperations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 3: {
@@ -71721,11 +74512,11 @@
                                         break;
                                     }
                                 case 4: {
-                                        message.backup = $root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32());
+                                        message.backup = $root.google.spanner.admin.database.v1.Backup.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -71756,14 +74547,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CloudBackupResponse.verify = function verify(message) {
+                        CloudBackupResponse.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.listedBackups != null && message.hasOwnProperty("listedBackups")) {
                                 if (!Array.isArray(message.listedBackups))
                                     return "listedBackups: array expected";
                                 for (var i = 0; i < message.listedBackups.length; ++i) {
-                                    var error = $root.google.spanner.admin.database.v1.Backup.verify(message.listedBackups[i]);
+                                    var error = $root.google.spanner.admin.database.v1.Backup.verify(message.listedBackups[i], long + 1);
                                     if (error)
                                         return "listedBackups." + error;
                                 }
@@ -71772,7 +74567,7 @@
                                 if (!Array.isArray(message.listedBackupOperations))
                                     return "listedBackupOperations: array expected";
                                 for (var i = 0; i < message.listedBackupOperations.length; ++i) {
-                                    var error = $root.google.longrunning.Operation.verify(message.listedBackupOperations[i]);
+                                    var error = $root.google.longrunning.Operation.verify(message.listedBackupOperations[i], long + 1);
                                     if (error)
                                         return "listedBackupOperations." + error;
                                 }
@@ -71781,7 +74576,7 @@
                                 if (!$util.isString(message.nextPageToken))
                                     return "nextPageToken: string expected";
                             if (message.backup != null && message.hasOwnProperty("backup")) {
-                                var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backup);
+                                var error = $root.google.spanner.admin.database.v1.Backup.verify(message.backup, long + 1);
                                 if (error)
                                     return "backup." + error;
                             }
@@ -71796,9 +74591,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CloudBackupResponse} CloudBackupResponse
                          */
-                        CloudBackupResponse.fromObject = function fromObject(object) {
+                        CloudBackupResponse.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CloudBackupResponse)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CloudBackupResponse();
                             if (object.listedBackups) {
                                 if (!Array.isArray(object.listedBackups))
@@ -71807,7 +74606,7 @@
                                 for (var i = 0; i < object.listedBackups.length; ++i) {
                                     if (typeof object.listedBackups[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.CloudBackupResponse.listedBackups: object expected");
-                                    message.listedBackups[i] = $root.google.spanner.admin.database.v1.Backup.fromObject(object.listedBackups[i]);
+                                    message.listedBackups[i] = $root.google.spanner.admin.database.v1.Backup.fromObject(object.listedBackups[i], long + 1);
                                 }
                             }
                             if (object.listedBackupOperations) {
@@ -71817,7 +74616,7 @@
                                 for (var i = 0; i < object.listedBackupOperations.length; ++i) {
                                     if (typeof object.listedBackupOperations[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.CloudBackupResponse.listedBackupOperations: object expected");
-                                    message.listedBackupOperations[i] = $root.google.longrunning.Operation.fromObject(object.listedBackupOperations[i]);
+                                    message.listedBackupOperations[i] = $root.google.longrunning.Operation.fromObject(object.listedBackupOperations[i], long + 1);
                                 }
                             }
                             if (object.nextPageToken != null)
@@ -71825,7 +74624,7 @@
                             if (object.backup != null) {
                                 if (typeof object.backup !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CloudBackupResponse.backup: object expected");
-                                message.backup = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backup);
+                                message.backup = $root.google.spanner.admin.database.v1.Backup.fromObject(object.backup, long + 1);
                             }
                             return message;
                         };
@@ -71920,7 +74719,7 @@
                             this.listedOperations = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -72006,9 +74805,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        OperationResponse.decode = function decode(reader, length, error) {
+                        OperationResponse.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.OperationResponse();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -72018,7 +74821,7 @@
                                 case 1: {
                                         if (!(message.listedOperations && message.listedOperations.length))
                                             message.listedOperations = [];
-                                        message.listedOperations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                        message.listedOperations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
@@ -72026,11 +74829,11 @@
                                         break;
                                     }
                                 case 3: {
-                                        message.operation = $root.google.longrunning.Operation.decode(reader, reader.uint32());
+                                        message.operation = $root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -72061,14 +74864,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        OperationResponse.verify = function verify(message) {
+                        OperationResponse.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.listedOperations != null && message.hasOwnProperty("listedOperations")) {
                                 if (!Array.isArray(message.listedOperations))
                                     return "listedOperations: array expected";
                                 for (var i = 0; i < message.listedOperations.length; ++i) {
-                                    var error = $root.google.longrunning.Operation.verify(message.listedOperations[i]);
+                                    var error = $root.google.longrunning.Operation.verify(message.listedOperations[i], long + 1);
                                     if (error)
                                         return "listedOperations." + error;
                                 }
@@ -72077,7 +74884,7 @@
                                 if (!$util.isString(message.nextPageToken))
                                     return "nextPageToken: string expected";
                             if (message.operation != null && message.hasOwnProperty("operation")) {
-                                var error = $root.google.longrunning.Operation.verify(message.operation);
+                                var error = $root.google.longrunning.Operation.verify(message.operation, long + 1);
                                 if (error)
                                     return "operation." + error;
                             }
@@ -72092,9 +74899,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.OperationResponse} OperationResponse
                          */
-                        OperationResponse.fromObject = function fromObject(object) {
+                        OperationResponse.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.OperationResponse)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.OperationResponse();
                             if (object.listedOperations) {
                                 if (!Array.isArray(object.listedOperations))
@@ -72103,7 +74914,7 @@
                                 for (var i = 0; i < object.listedOperations.length; ++i) {
                                     if (typeof object.listedOperations[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.OperationResponse.listedOperations: object expected");
-                                    message.listedOperations[i] = $root.google.longrunning.Operation.fromObject(object.listedOperations[i]);
+                                    message.listedOperations[i] = $root.google.longrunning.Operation.fromObject(object.listedOperations[i], long + 1);
                                 }
                             }
                             if (object.nextPageToken != null)
@@ -72111,7 +74922,7 @@
                             if (object.operation != null) {
                                 if (typeof object.operation !== "object")
                                     throw TypeError(".google.spanner.executor.v1.OperationResponse.operation: object expected");
-                                message.operation = $root.google.longrunning.Operation.fromObject(object.operation);
+                                message.operation = $root.google.longrunning.Operation.fromObject(object.operation, long + 1);
                             }
                             return message;
                         };
@@ -72199,7 +75010,7 @@
                             this.listedInstances = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -72285,9 +75096,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CloudInstanceResponse.decode = function decode(reader, length, error) {
+                        CloudInstanceResponse.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CloudInstanceResponse();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -72297,7 +75112,7 @@
                                 case 1: {
                                         if (!(message.listedInstances && message.listedInstances.length))
                                             message.listedInstances = [];
-                                        message.listedInstances.push($root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32()));
+                                        message.listedInstances.push($root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
@@ -72305,11 +75120,11 @@
                                         break;
                                     }
                                 case 3: {
-                                        message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32());
+                                        message.instance = $root.google.spanner.admin.instance.v1.Instance.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -72340,14 +75155,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CloudInstanceResponse.verify = function verify(message) {
+                        CloudInstanceResponse.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.listedInstances != null && message.hasOwnProperty("listedInstances")) {
                                 if (!Array.isArray(message.listedInstances))
                                     return "listedInstances: array expected";
                                 for (var i = 0; i < message.listedInstances.length; ++i) {
-                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.listedInstances[i]);
+                                    var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.listedInstances[i], long + 1);
                                     if (error)
                                         return "listedInstances." + error;
                                 }
@@ -72356,7 +75175,7 @@
                                 if (!$util.isString(message.nextPageToken))
                                     return "nextPageToken: string expected";
                             if (message.instance != null && message.hasOwnProperty("instance")) {
-                                var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance);
+                                var error = $root.google.spanner.admin.instance.v1.Instance.verify(message.instance, long + 1);
                                 if (error)
                                     return "instance." + error;
                             }
@@ -72371,9 +75190,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CloudInstanceResponse} CloudInstanceResponse
                          */
-                        CloudInstanceResponse.fromObject = function fromObject(object) {
+                        CloudInstanceResponse.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CloudInstanceResponse)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CloudInstanceResponse();
                             if (object.listedInstances) {
                                 if (!Array.isArray(object.listedInstances))
@@ -72382,7 +75205,7 @@
                                 for (var i = 0; i < object.listedInstances.length; ++i) {
                                     if (typeof object.listedInstances[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.CloudInstanceResponse.listedInstances: object expected");
-                                    message.listedInstances[i] = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.listedInstances[i]);
+                                    message.listedInstances[i] = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.listedInstances[i], long + 1);
                                 }
                             }
                             if (object.nextPageToken != null)
@@ -72390,7 +75213,7 @@
                             if (object.instance != null) {
                                 if (typeof object.instance !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CloudInstanceResponse.instance: object expected");
-                                message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance);
+                                message.instance = $root.google.spanner.admin.instance.v1.Instance.fromObject(object.instance, long + 1);
                             }
                             return message;
                         };
@@ -72478,7 +75301,7 @@
                             this.listedInstanceConfigs = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -72564,9 +75387,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CloudInstanceConfigResponse.decode = function decode(reader, length, error) {
+                        CloudInstanceConfigResponse.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CloudInstanceConfigResponse();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -72576,7 +75403,7 @@
                                 case 1: {
                                         if (!(message.listedInstanceConfigs && message.listedInstanceConfigs.length))
                                             message.listedInstanceConfigs = [];
-                                        message.listedInstanceConfigs.push($root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32()));
+                                        message.listedInstanceConfigs.push($root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
@@ -72584,11 +75411,11 @@
                                         break;
                                     }
                                 case 3: {
-                                        message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32());
+                                        message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -72619,14 +75446,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CloudInstanceConfigResponse.verify = function verify(message) {
+                        CloudInstanceConfigResponse.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.listedInstanceConfigs != null && message.hasOwnProperty("listedInstanceConfigs")) {
                                 if (!Array.isArray(message.listedInstanceConfigs))
                                     return "listedInstanceConfigs: array expected";
                                 for (var i = 0; i < message.listedInstanceConfigs.length; ++i) {
-                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.listedInstanceConfigs[i]);
+                                    var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.listedInstanceConfigs[i], long + 1);
                                     if (error)
                                         return "listedInstanceConfigs." + error;
                                 }
@@ -72635,7 +75466,7 @@
                                 if (!$util.isString(message.nextPageToken))
                                     return "nextPageToken: string expected";
                             if (message.instanceConfig != null && message.hasOwnProperty("instanceConfig")) {
-                                var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig);
+                                var error = $root.google.spanner.admin.instance.v1.InstanceConfig.verify(message.instanceConfig, long + 1);
                                 if (error)
                                     return "instanceConfig." + error;
                             }
@@ -72650,9 +75481,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CloudInstanceConfigResponse} CloudInstanceConfigResponse
                          */
-                        CloudInstanceConfigResponse.fromObject = function fromObject(object) {
+                        CloudInstanceConfigResponse.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CloudInstanceConfigResponse)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CloudInstanceConfigResponse();
                             if (object.listedInstanceConfigs) {
                                 if (!Array.isArray(object.listedInstanceConfigs))
@@ -72661,7 +75496,7 @@
                                 for (var i = 0; i < object.listedInstanceConfigs.length; ++i) {
                                     if (typeof object.listedInstanceConfigs[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.CloudInstanceConfigResponse.listedInstanceConfigs: object expected");
-                                    message.listedInstanceConfigs[i] = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.listedInstanceConfigs[i]);
+                                    message.listedInstanceConfigs[i] = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.listedInstanceConfigs[i], long + 1);
                                 }
                             }
                             if (object.nextPageToken != null)
@@ -72669,7 +75504,7 @@
                             if (object.instanceConfig != null) {
                                 if (typeof object.instanceConfig !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CloudInstanceConfigResponse.instanceConfig: object expected");
-                                message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig);
+                                message.instanceConfig = $root.google.spanner.admin.instance.v1.InstanceConfig.fromObject(object.instanceConfig, long + 1);
                             }
                             return message;
                         };
@@ -72759,7 +75594,7 @@
                             this.listedDatabaseOperations = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -72856,9 +75691,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CloudDatabaseResponse.decode = function decode(reader, length, error) {
+                        CloudDatabaseResponse.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.CloudDatabaseResponse();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -72868,13 +75707,13 @@
                                 case 1: {
                                         if (!(message.listedDatabases && message.listedDatabases.length))
                                             message.listedDatabases = [];
-                                        message.listedDatabases.push($root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32()));
+                                        message.listedDatabases.push($root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
                                         if (!(message.listedDatabaseOperations && message.listedDatabaseOperations.length))
                                             message.listedDatabaseOperations = [];
-                                        message.listedDatabaseOperations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                        message.listedDatabaseOperations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 3: {
@@ -72882,11 +75721,11 @@
                                         break;
                                     }
                                 case 4: {
-                                        message.database = $root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32());
+                                        message.database = $root.google.spanner.admin.database.v1.Database.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -72917,14 +75756,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CloudDatabaseResponse.verify = function verify(message) {
+                        CloudDatabaseResponse.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.listedDatabases != null && message.hasOwnProperty("listedDatabases")) {
                                 if (!Array.isArray(message.listedDatabases))
                                     return "listedDatabases: array expected";
                                 for (var i = 0; i < message.listedDatabases.length; ++i) {
-                                    var error = $root.google.spanner.admin.database.v1.Database.verify(message.listedDatabases[i]);
+                                    var error = $root.google.spanner.admin.database.v1.Database.verify(message.listedDatabases[i], long + 1);
                                     if (error)
                                         return "listedDatabases." + error;
                                 }
@@ -72933,7 +75776,7 @@
                                 if (!Array.isArray(message.listedDatabaseOperations))
                                     return "listedDatabaseOperations: array expected";
                                 for (var i = 0; i < message.listedDatabaseOperations.length; ++i) {
-                                    var error = $root.google.longrunning.Operation.verify(message.listedDatabaseOperations[i]);
+                                    var error = $root.google.longrunning.Operation.verify(message.listedDatabaseOperations[i], long + 1);
                                     if (error)
                                         return "listedDatabaseOperations." + error;
                                 }
@@ -72942,7 +75785,7 @@
                                 if (!$util.isString(message.nextPageToken))
                                     return "nextPageToken: string expected";
                             if (message.database != null && message.hasOwnProperty("database")) {
-                                var error = $root.google.spanner.admin.database.v1.Database.verify(message.database);
+                                var error = $root.google.spanner.admin.database.v1.Database.verify(message.database, long + 1);
                                 if (error)
                                     return "database." + error;
                             }
@@ -72957,9 +75800,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.CloudDatabaseResponse} CloudDatabaseResponse
                          */
-                        CloudDatabaseResponse.fromObject = function fromObject(object) {
+                        CloudDatabaseResponse.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.CloudDatabaseResponse)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.CloudDatabaseResponse();
                             if (object.listedDatabases) {
                                 if (!Array.isArray(object.listedDatabases))
@@ -72968,7 +75815,7 @@
                                 for (var i = 0; i < object.listedDatabases.length; ++i) {
                                     if (typeof object.listedDatabases[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.CloudDatabaseResponse.listedDatabases: object expected");
-                                    message.listedDatabases[i] = $root.google.spanner.admin.database.v1.Database.fromObject(object.listedDatabases[i]);
+                                    message.listedDatabases[i] = $root.google.spanner.admin.database.v1.Database.fromObject(object.listedDatabases[i], long + 1);
                                 }
                             }
                             if (object.listedDatabaseOperations) {
@@ -72978,7 +75825,7 @@
                                 for (var i = 0; i < object.listedDatabaseOperations.length; ++i) {
                                     if (typeof object.listedDatabaseOperations[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.CloudDatabaseResponse.listedDatabaseOperations: object expected");
-                                    message.listedDatabaseOperations[i] = $root.google.longrunning.Operation.fromObject(object.listedDatabaseOperations[i]);
+                                    message.listedDatabaseOperations[i] = $root.google.longrunning.Operation.fromObject(object.listedDatabaseOperations[i], long + 1);
                                 }
                             }
                             if (object.nextPageToken != null)
@@ -72986,7 +75833,7 @@
                             if (object.database != null) {
                                 if (typeof object.database !== "object")
                                     throw TypeError(".google.spanner.executor.v1.CloudDatabaseResponse.database: object expected");
-                                message.database = $root.google.spanner.admin.database.v1.Database.fromObject(object.database);
+                                message.database = $root.google.spanner.admin.database.v1.Database.fromObject(object.database, long + 1);
                             }
                             return message;
                         };
@@ -73083,7 +75930,7 @@
                             this.row = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -73210,9 +76057,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ReadResult.decode = function decode(reader, length, error) {
+                        ReadResult.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ReadResult();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -73234,15 +76085,15 @@
                                 case 4: {
                                         if (!(message.row && message.row.length))
                                             message.row = [];
-                                        message.row.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32()));
+                                        message.row.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 5: {
-                                        message.rowType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32());
+                                        message.rowType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -73273,9 +76124,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ReadResult.verify = function verify(message) {
+                        ReadResult.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.table != null && message.hasOwnProperty("table"))
                                 if (!$util.isString(message.table))
@@ -73294,7 +76149,7 @@
                                 if (!Array.isArray(message.row))
                                     return "row: array expected";
                                 for (var i = 0; i < message.row.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.row[i]);
+                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.row[i], long + 1);
                                     if (error)
                                         return "row." + error;
                                 }
@@ -73302,7 +76157,7 @@
                             if (message.rowType != null && message.hasOwnProperty("rowType")) {
                                 properties._rowType = 1;
                                 {
-                                    var error = $root.google.spanner.v1.StructType.verify(message.rowType);
+                                    var error = $root.google.spanner.v1.StructType.verify(message.rowType, long + 1);
                                     if (error)
                                         return "rowType." + error;
                                 }
@@ -73318,9 +76173,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ReadResult} ReadResult
                          */
-                        ReadResult.fromObject = function fromObject(object) {
+                        ReadResult.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ReadResult)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ReadResult();
                             if (object.table != null)
                                 message.table = String(object.table);
@@ -73335,13 +76194,13 @@
                                 for (var i = 0; i < object.row.length; ++i) {
                                     if (typeof object.row[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.ReadResult.row: object expected");
-                                    message.row[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.row[i]);
+                                    message.row[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.row[i], long + 1);
                                 }
                             }
                             if (object.rowType != null) {
                                 if (typeof object.rowType !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ReadResult.rowType: object expected");
-                                message.rowType = $root.google.spanner.v1.StructType.fromObject(object.rowType);
+                                message.rowType = $root.google.spanner.v1.StructType.fromObject(object.rowType, long + 1);
                             }
                             return message;
                         };
@@ -73439,7 +76298,7 @@
                             this.row = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -73524,9 +76383,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        QueryResult.decode = function decode(reader, length, error) {
+                        QueryResult.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.QueryResult();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -73536,15 +76399,15 @@
                                 case 1: {
                                         if (!(message.row && message.row.length))
                                             message.row = [];
-                                        message.row.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32()));
+                                        message.row.push($root.google.spanner.executor.v1.ValueList.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
-                                        message.rowType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32());
+                                        message.rowType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -73575,15 +76438,19 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        QueryResult.verify = function verify(message) {
+                        QueryResult.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.row != null && message.hasOwnProperty("row")) {
                                 if (!Array.isArray(message.row))
                                     return "row: array expected";
                                 for (var i = 0; i < message.row.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.row[i]);
+                                    var error = $root.google.spanner.executor.v1.ValueList.verify(message.row[i], long + 1);
                                     if (error)
                                         return "row." + error;
                                 }
@@ -73591,7 +76458,7 @@
                             if (message.rowType != null && message.hasOwnProperty("rowType")) {
                                 properties._rowType = 1;
                                 {
-                                    var error = $root.google.spanner.v1.StructType.verify(message.rowType);
+                                    var error = $root.google.spanner.v1.StructType.verify(message.rowType, long + 1);
                                     if (error)
                                         return "rowType." + error;
                                 }
@@ -73607,9 +76474,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.QueryResult} QueryResult
                          */
-                        QueryResult.fromObject = function fromObject(object) {
+                        QueryResult.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.QueryResult)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.QueryResult();
                             if (object.row) {
                                 if (!Array.isArray(object.row))
@@ -73618,13 +76489,13 @@
                                 for (var i = 0; i < object.row.length; ++i) {
                                     if (typeof object.row[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.QueryResult.row: object expected");
-                                    message.row[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.row[i]);
+                                    message.row[i] = $root.google.spanner.executor.v1.ValueList.fromObject(object.row[i], long + 1);
                                 }
                             }
                             if (object.rowType != null) {
                                 if (typeof object.rowType !== "object")
                                     throw TypeError(".google.spanner.executor.v1.QueryResult.rowType: object expected");
-                                message.rowType = $root.google.spanner.v1.StructType.fromObject(object.rowType);
+                                message.rowType = $root.google.spanner.v1.StructType.fromObject(object.rowType, long + 1);
                             }
                             return message;
                         };
@@ -73708,7 +76579,7 @@
                         function ChangeStreamRecord(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -73807,9 +76678,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ChangeStreamRecord.decode = function decode(reader, length, error) {
+                        ChangeStreamRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ChangeStreamRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -73817,19 +76692,19 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.dataChange = $root.google.spanner.executor.v1.DataChangeRecord.decode(reader, reader.uint32());
+                                        message.dataChange = $root.google.spanner.executor.v1.DataChangeRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
-                                        message.childPartition = $root.google.spanner.executor.v1.ChildPartitionsRecord.decode(reader, reader.uint32());
+                                        message.childPartition = $root.google.spanner.executor.v1.ChildPartitionsRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
-                                        message.heartbeat = $root.google.spanner.executor.v1.HeartbeatRecord.decode(reader, reader.uint32());
+                                        message.heartbeat = $root.google.spanner.executor.v1.HeartbeatRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -73860,14 +76735,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ChangeStreamRecord.verify = function verify(message) {
+                        ChangeStreamRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.dataChange != null && message.hasOwnProperty("dataChange")) {
                                 properties.record = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.DataChangeRecord.verify(message.dataChange);
+                                    var error = $root.google.spanner.executor.v1.DataChangeRecord.verify(message.dataChange, long + 1);
                                     if (error)
                                         return "dataChange." + error;
                                 }
@@ -73877,7 +76756,7 @@
                                     return "record: multiple values";
                                 properties.record = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.ChildPartitionsRecord.verify(message.childPartition);
+                                    var error = $root.google.spanner.executor.v1.ChildPartitionsRecord.verify(message.childPartition, long + 1);
                                     if (error)
                                         return "childPartition." + error;
                                 }
@@ -73887,7 +76766,7 @@
                                     return "record: multiple values";
                                 properties.record = 1;
                                 {
-                                    var error = $root.google.spanner.executor.v1.HeartbeatRecord.verify(message.heartbeat);
+                                    var error = $root.google.spanner.executor.v1.HeartbeatRecord.verify(message.heartbeat, long + 1);
                                     if (error)
                                         return "heartbeat." + error;
                                 }
@@ -73903,24 +76782,28 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ChangeStreamRecord} ChangeStreamRecord
                          */
-                        ChangeStreamRecord.fromObject = function fromObject(object) {
+                        ChangeStreamRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ChangeStreamRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ChangeStreamRecord();
                             if (object.dataChange != null) {
                                 if (typeof object.dataChange !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ChangeStreamRecord.dataChange: object expected");
-                                message.dataChange = $root.google.spanner.executor.v1.DataChangeRecord.fromObject(object.dataChange);
+                                message.dataChange = $root.google.spanner.executor.v1.DataChangeRecord.fromObject(object.dataChange, long + 1);
                             }
                             if (object.childPartition != null) {
                                 if (typeof object.childPartition !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ChangeStreamRecord.childPartition: object expected");
-                                message.childPartition = $root.google.spanner.executor.v1.ChildPartitionsRecord.fromObject(object.childPartition);
+                                message.childPartition = $root.google.spanner.executor.v1.ChildPartitionsRecord.fromObject(object.childPartition, long + 1);
                             }
                             if (object.heartbeat != null) {
                                 if (typeof object.heartbeat !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ChangeStreamRecord.heartbeat: object expected");
-                                message.heartbeat = $root.google.spanner.executor.v1.HeartbeatRecord.fromObject(object.heartbeat);
+                                message.heartbeat = $root.google.spanner.executor.v1.HeartbeatRecord.fromObject(object.heartbeat, long + 1);
                             }
                             return message;
                         };
@@ -74019,7 +76902,7 @@
                             this.mods = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -74206,9 +77089,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        DataChangeRecord.decode = function decode(reader, length, error) {
+                        DataChangeRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DataChangeRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -74216,7 +77103,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.commitTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.commitTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -74238,13 +77125,13 @@
                                 case 6: {
                                         if (!(message.columnTypes && message.columnTypes.length))
                                             message.columnTypes = [];
-                                        message.columnTypes.push($root.google.spanner.executor.v1.DataChangeRecord.ColumnType.decode(reader, reader.uint32()));
+                                        message.columnTypes.push($root.google.spanner.executor.v1.DataChangeRecord.ColumnType.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 7: {
                                         if (!(message.mods && message.mods.length))
                                             message.mods = [];
-                                        message.mods.push($root.google.spanner.executor.v1.DataChangeRecord.Mod.decode(reader, reader.uint32()));
+                                        message.mods.push($root.google.spanner.executor.v1.DataChangeRecord.Mod.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 8: {
@@ -74272,7 +77159,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -74303,11 +77190,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        DataChangeRecord.verify = function verify(message) {
+                        DataChangeRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.commitTime != null && message.hasOwnProperty("commitTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.commitTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.commitTime, long + 1);
                                 if (error)
                                     return "commitTime." + error;
                             }
@@ -74327,7 +77218,7 @@
                                 if (!Array.isArray(message.columnTypes))
                                     return "columnTypes: array expected";
                                 for (var i = 0; i < message.columnTypes.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.DataChangeRecord.ColumnType.verify(message.columnTypes[i]);
+                                    var error = $root.google.spanner.executor.v1.DataChangeRecord.ColumnType.verify(message.columnTypes[i], long + 1);
                                     if (error)
                                         return "columnTypes." + error;
                                 }
@@ -74336,7 +77227,7 @@
                                 if (!Array.isArray(message.mods))
                                     return "mods: array expected";
                                 for (var i = 0; i < message.mods.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.DataChangeRecord.Mod.verify(message.mods[i]);
+                                    var error = $root.google.spanner.executor.v1.DataChangeRecord.Mod.verify(message.mods[i], long + 1);
                                     if (error)
                                         return "mods." + error;
                                 }
@@ -74370,14 +77261,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.DataChangeRecord} DataChangeRecord
                          */
-                        DataChangeRecord.fromObject = function fromObject(object) {
+                        DataChangeRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.DataChangeRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.DataChangeRecord();
                             if (object.commitTime != null) {
                                 if (typeof object.commitTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.DataChangeRecord.commitTime: object expected");
-                                message.commitTime = $root.google.protobuf.Timestamp.fromObject(object.commitTime);
+                                message.commitTime = $root.google.protobuf.Timestamp.fromObject(object.commitTime, long + 1);
                             }
                             if (object.recordSequence != null)
                                 message.recordSequence = String(object.recordSequence);
@@ -74394,7 +77289,7 @@
                                 for (var i = 0; i < object.columnTypes.length; ++i) {
                                     if (typeof object.columnTypes[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.DataChangeRecord.columnTypes: object expected");
-                                    message.columnTypes[i] = $root.google.spanner.executor.v1.DataChangeRecord.ColumnType.fromObject(object.columnTypes[i]);
+                                    message.columnTypes[i] = $root.google.spanner.executor.v1.DataChangeRecord.ColumnType.fromObject(object.columnTypes[i], long + 1);
                                 }
                             }
                             if (object.mods) {
@@ -74404,7 +77299,7 @@
                                 for (var i = 0; i < object.mods.length; ++i) {
                                     if (typeof object.mods[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.DataChangeRecord.mods: object expected");
-                                    message.mods[i] = $root.google.spanner.executor.v1.DataChangeRecord.Mod.fromObject(object.mods[i]);
+                                    message.mods[i] = $root.google.spanner.executor.v1.DataChangeRecord.Mod.fromObject(object.mods[i], long + 1);
                                 }
                             }
                             if (object.modType != null)
@@ -74564,7 +77459,7 @@
                             function ColumnType(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -74659,9 +77554,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ColumnType.decode = function decode(reader, length, error) {
+                            ColumnType.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DataChangeRecord.ColumnType();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -74685,7 +77584,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -74716,9 +77615,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ColumnType.verify = function verify(message) {
+                            ColumnType.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
@@ -74742,9 +77645,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.DataChangeRecord.ColumnType} ColumnType
                              */
-                            ColumnType.fromObject = function fromObject(object) {
+                            ColumnType.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.DataChangeRecord.ColumnType)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.DataChangeRecord.ColumnType();
                                 if (object.name != null)
                                     message.name = String(object.name);
@@ -74852,7 +77759,7 @@
                             function Mod(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -74937,9 +77844,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            Mod.decode = function decode(reader, length, error) {
+                            Mod.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.DataChangeRecord.Mod();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -74959,7 +77870,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -74990,9 +77901,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            Mod.verify = function verify(message) {
+                            Mod.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.keys != null && message.hasOwnProperty("keys"))
                                     if (!$util.isString(message.keys))
                                         return "keys: string expected";
@@ -75013,9 +77928,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.DataChangeRecord.Mod} Mod
                              */
-                            Mod.fromObject = function fromObject(object) {
+                            Mod.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.DataChangeRecord.Mod)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.DataChangeRecord.Mod();
                                 if (object.keys != null)
                                     message.keys = String(object.keys);
@@ -75108,7 +78027,7 @@
                             this.childPartitions = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -75194,9 +78113,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ChildPartitionsRecord.decode = function decode(reader, length, error) {
+                        ChildPartitionsRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ChildPartitionsRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -75204,7 +78127,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -75214,11 +78137,11 @@
                                 case 3: {
                                         if (!(message.childPartitions && message.childPartitions.length))
                                             message.childPartitions = [];
-                                        message.childPartitions.push($root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition.decode(reader, reader.uint32()));
+                                        message.childPartitions.push($root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -75249,11 +78172,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ChildPartitionsRecord.verify = function verify(message) {
+                        ChildPartitionsRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.startTime != null && message.hasOwnProperty("startTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.startTime, long + 1);
                                 if (error)
                                     return "startTime." + error;
                             }
@@ -75264,7 +78191,7 @@
                                 if (!Array.isArray(message.childPartitions))
                                     return "childPartitions: array expected";
                                 for (var i = 0; i < message.childPartitions.length; ++i) {
-                                    var error = $root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition.verify(message.childPartitions[i]);
+                                    var error = $root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition.verify(message.childPartitions[i], long + 1);
                                     if (error)
                                         return "childPartitions." + error;
                                 }
@@ -75280,14 +78207,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.ChildPartitionsRecord} ChildPartitionsRecord
                          */
-                        ChildPartitionsRecord.fromObject = function fromObject(object) {
+                        ChildPartitionsRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.ChildPartitionsRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.ChildPartitionsRecord();
                             if (object.startTime != null) {
                                 if (typeof object.startTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.ChildPartitionsRecord.startTime: object expected");
-                                message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                                message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime, long + 1);
                             }
                             if (object.recordSequence != null)
                                 message.recordSequence = String(object.recordSequence);
@@ -75298,7 +78229,7 @@
                                 for (var i = 0; i < object.childPartitions.length; ++i) {
                                     if (typeof object.childPartitions[i] !== "object")
                                         throw TypeError(".google.spanner.executor.v1.ChildPartitionsRecord.childPartitions: object expected");
-                                    message.childPartitions[i] = $root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition.fromObject(object.childPartitions[i]);
+                                    message.childPartitions[i] = $root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition.fromObject(object.childPartitions[i], long + 1);
                                 }
                             }
                             return message;
@@ -75383,7 +78314,7 @@
                                 this.parentPartitionTokens = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -75459,9 +78390,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ChildPartition.decode = function decode(reader, length, error) {
+                            ChildPartition.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -75479,7 +78414,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -75510,9 +78445,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ChildPartition.verify = function verify(message) {
+                            ChildPartition.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.token != null && message.hasOwnProperty("token"))
                                     if (!$util.isString(message.token))
                                         return "token: string expected";
@@ -75534,9 +78473,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition} ChildPartition
                              */
-                            ChildPartition.fromObject = function fromObject(object) {
+                            ChildPartition.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.executor.v1.ChildPartitionsRecord.ChildPartition();
                                 if (object.token != null)
                                     message.token = String(object.token);
@@ -75629,7 +78572,7 @@
                         function HeartbeatRecord(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -75694,9 +78637,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        HeartbeatRecord.decode = function decode(reader, length, error) {
+                        HeartbeatRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.HeartbeatRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -75704,11 +78651,11 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.heartbeatTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.heartbeatTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -75739,11 +78686,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        HeartbeatRecord.verify = function verify(message) {
+                        HeartbeatRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.heartbeatTime != null && message.hasOwnProperty("heartbeatTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.heartbeatTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.heartbeatTime, long + 1);
                                 if (error)
                                     return "heartbeatTime." + error;
                             }
@@ -75758,14 +78709,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.HeartbeatRecord} HeartbeatRecord
                          */
-                        HeartbeatRecord.fromObject = function fromObject(object) {
+                        HeartbeatRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.HeartbeatRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.HeartbeatRecord();
                             if (object.heartbeatTime != null) {
                                 if (typeof object.heartbeatTime !== "object")
                                     throw TypeError(".google.spanner.executor.v1.HeartbeatRecord.heartbeatTime: object expected");
-                                message.heartbeatTime = $root.google.protobuf.Timestamp.fromObject(object.heartbeatTime);
+                                message.heartbeatTime = $root.google.protobuf.Timestamp.fromObject(object.heartbeatTime, long + 1);
                             }
                             return message;
                         };
@@ -75839,7 +78794,7 @@
                         function SpannerOptions(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -75904,9 +78859,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        SpannerOptions.decode = function decode(reader, length, error) {
+                        SpannerOptions.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.SpannerOptions();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -75914,11 +78873,11 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.sessionPoolOptions = $root.google.spanner.executor.v1.SessionPoolOptions.decode(reader, reader.uint32());
+                                        message.sessionPoolOptions = $root.google.spanner.executor.v1.SessionPoolOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -75949,11 +78908,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        SpannerOptions.verify = function verify(message) {
+                        SpannerOptions.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.sessionPoolOptions != null && message.hasOwnProperty("sessionPoolOptions")) {
-                                var error = $root.google.spanner.executor.v1.SessionPoolOptions.verify(message.sessionPoolOptions);
+                                var error = $root.google.spanner.executor.v1.SessionPoolOptions.verify(message.sessionPoolOptions, long + 1);
                                 if (error)
                                     return "sessionPoolOptions." + error;
                             }
@@ -75968,14 +78931,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.SpannerOptions} SpannerOptions
                          */
-                        SpannerOptions.fromObject = function fromObject(object) {
+                        SpannerOptions.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.SpannerOptions)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.SpannerOptions();
                             if (object.sessionPoolOptions != null) {
                                 if (typeof object.sessionPoolOptions !== "object")
                                     throw TypeError(".google.spanner.executor.v1.SpannerOptions.sessionPoolOptions: object expected");
-                                message.sessionPoolOptions = $root.google.spanner.executor.v1.SessionPoolOptions.fromObject(object.sessionPoolOptions);
+                                message.sessionPoolOptions = $root.google.spanner.executor.v1.SessionPoolOptions.fromObject(object.sessionPoolOptions, long + 1);
                             }
                             return message;
                         };
@@ -76049,7 +79016,7 @@
                         function SessionPoolOptions(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -76114,9 +79081,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        SessionPoolOptions.decode = function decode(reader, length, error) {
+                        SessionPoolOptions.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.executor.v1.SessionPoolOptions();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -76128,7 +79099,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -76159,9 +79130,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        SessionPoolOptions.verify = function verify(message) {
+                        SessionPoolOptions.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.useMultiplexed != null && message.hasOwnProperty("useMultiplexed"))
                                 if (typeof message.useMultiplexed !== "boolean")
                                     return "useMultiplexed: boolean expected";
@@ -76176,9 +79151,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.executor.v1.SessionPoolOptions} SessionPoolOptions
                          */
-                        SessionPoolOptions.fromObject = function fromObject(object) {
+                        SessionPoolOptions.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.executor.v1.SessionPoolOptions)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.executor.v1.SessionPoolOptions();
                             if (object.useMultiplexed != null)
                                 message.useMultiplexed = Boolean(object.useMultiplexed);
@@ -76833,7 +79812,7 @@
                     function CreateSessionRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -76908,9 +79887,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    CreateSessionRequest.decode = function decode(reader, length, error) {
+                    CreateSessionRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.CreateSessionRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -76922,11 +79905,11 @@
                                     break;
                                 }
                             case 2: {
-                                    message.session = $root.google.spanner.v1.Session.decode(reader, reader.uint32());
+                                    message.session = $root.google.spanner.v1.Session.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -76957,14 +79940,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    CreateSessionRequest.verify = function verify(message) {
+                    CreateSessionRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.database != null && message.hasOwnProperty("database"))
                             if (!$util.isString(message.database))
                                 return "database: string expected";
                         if (message.session != null && message.hasOwnProperty("session")) {
-                            var error = $root.google.spanner.v1.Session.verify(message.session);
+                            var error = $root.google.spanner.v1.Session.verify(message.session, long + 1);
                             if (error)
                                 return "session." + error;
                         }
@@ -76979,16 +79966,20 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.CreateSessionRequest} CreateSessionRequest
                      */
-                    CreateSessionRequest.fromObject = function fromObject(object) {
+                    CreateSessionRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.CreateSessionRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.CreateSessionRequest();
                         if (object.database != null)
                             message.database = String(object.database);
                         if (object.session != null) {
                             if (typeof object.session !== "object")
                                 throw TypeError(".google.spanner.v1.CreateSessionRequest.session: object expected");
-                            message.session = $root.google.spanner.v1.Session.fromObject(object.session);
+                            message.session = $root.google.spanner.v1.Session.fromObject(object.session, long + 1);
                         }
                         return message;
                     };
@@ -77068,7 +80059,7 @@
                     function BatchCreateSessionsRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -77153,9 +80144,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    BatchCreateSessionsRequest.decode = function decode(reader, length, error) {
+                    BatchCreateSessionsRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.BatchCreateSessionsRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -77167,7 +80162,7 @@
                                     break;
                                 }
                             case 2: {
-                                    message.sessionTemplate = $root.google.spanner.v1.Session.decode(reader, reader.uint32());
+                                    message.sessionTemplate = $root.google.spanner.v1.Session.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
@@ -77175,7 +80170,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -77206,14 +80201,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    BatchCreateSessionsRequest.verify = function verify(message) {
+                    BatchCreateSessionsRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.database != null && message.hasOwnProperty("database"))
                             if (!$util.isString(message.database))
                                 return "database: string expected";
                         if (message.sessionTemplate != null && message.hasOwnProperty("sessionTemplate")) {
-                            var error = $root.google.spanner.v1.Session.verify(message.sessionTemplate);
+                            var error = $root.google.spanner.v1.Session.verify(message.sessionTemplate, long + 1);
                             if (error)
                                 return "sessionTemplate." + error;
                         }
@@ -77231,16 +80230,20 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.BatchCreateSessionsRequest} BatchCreateSessionsRequest
                      */
-                    BatchCreateSessionsRequest.fromObject = function fromObject(object) {
+                    BatchCreateSessionsRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.BatchCreateSessionsRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.BatchCreateSessionsRequest();
                         if (object.database != null)
                             message.database = String(object.database);
                         if (object.sessionTemplate != null) {
                             if (typeof object.sessionTemplate !== "object")
                                 throw TypeError(".google.spanner.v1.BatchCreateSessionsRequest.sessionTemplate: object expected");
-                            message.sessionTemplate = $root.google.spanner.v1.Session.fromObject(object.sessionTemplate);
+                            message.sessionTemplate = $root.google.spanner.v1.Session.fromObject(object.sessionTemplate, long + 1);
                         }
                         if (object.sessionCount != null)
                             message.sessionCount = object.sessionCount | 0;
@@ -77324,7 +80327,7 @@
                         this.session = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -77390,9 +80393,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    BatchCreateSessionsResponse.decode = function decode(reader, length, error) {
+                    BatchCreateSessionsResponse.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.BatchCreateSessionsResponse();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -77402,11 +80409,11 @@
                             case 1: {
                                     if (!(message.session && message.session.length))
                                         message.session = [];
-                                    message.session.push($root.google.spanner.v1.Session.decode(reader, reader.uint32()));
+                                    message.session.push($root.google.spanner.v1.Session.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -77437,14 +80444,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    BatchCreateSessionsResponse.verify = function verify(message) {
+                    BatchCreateSessionsResponse.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session")) {
                             if (!Array.isArray(message.session))
                                 return "session: array expected";
                             for (var i = 0; i < message.session.length; ++i) {
-                                var error = $root.google.spanner.v1.Session.verify(message.session[i]);
+                                var error = $root.google.spanner.v1.Session.verify(message.session[i], long + 1);
                                 if (error)
                                     return "session." + error;
                             }
@@ -77460,9 +80471,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.BatchCreateSessionsResponse} BatchCreateSessionsResponse
                      */
-                    BatchCreateSessionsResponse.fromObject = function fromObject(object) {
+                    BatchCreateSessionsResponse.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.BatchCreateSessionsResponse)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.BatchCreateSessionsResponse();
                         if (object.session) {
                             if (!Array.isArray(object.session))
@@ -77471,7 +80486,7 @@
                             for (var i = 0; i < object.session.length; ++i) {
                                 if (typeof object.session[i] !== "object")
                                     throw TypeError(".google.spanner.v1.BatchCreateSessionsResponse.session: object expected");
-                                message.session[i] = $root.google.spanner.v1.Session.fromObject(object.session[i]);
+                                message.session[i] = $root.google.spanner.v1.Session.fromObject(object.session[i], long + 1);
                             }
                         }
                         return message;
@@ -77555,7 +80570,7 @@
                         this.labels = {};
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -77671,9 +80686,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Session.decode = function decode(reader, length, error) {
+                    Session.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Session(), key, value;
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -77700,19 +80719,21 @@
                                             value = reader.string();
                                             break;
                                         default:
-                                            reader.skipType(tag2 & 7);
+                                            reader.skipType(tag2 & 7, long);
                                             break;
                                         }
                                     }
+                                    if (key === "__proto__")
+                                        $util.makeProp(message.labels, key);
                                     message.labels[key] = value;
                                     break;
                                 }
                             case 3: {
-                                    message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
-                                    message.approximateLastUseTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    message.approximateLastUseTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
@@ -77724,7 +80745,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -77755,9 +80776,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Session.verify = function verify(message) {
+                    Session.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.name != null && message.hasOwnProperty("name"))
                             if (!$util.isString(message.name))
                                 return "name: string expected";
@@ -77770,12 +80795,12 @@
                                     return "labels: string{k:string} expected";
                         }
                         if (message.createTime != null && message.hasOwnProperty("createTime")) {
-                            var error = $root.google.protobuf.Timestamp.verify(message.createTime);
+                            var error = $root.google.protobuf.Timestamp.verify(message.createTime, long + 1);
                             if (error)
                                 return "createTime." + error;
                         }
                         if (message.approximateLastUseTime != null && message.hasOwnProperty("approximateLastUseTime")) {
-                            var error = $root.google.protobuf.Timestamp.verify(message.approximateLastUseTime);
+                            var error = $root.google.protobuf.Timestamp.verify(message.approximateLastUseTime, long + 1);
                             if (error)
                                 return "approximateLastUseTime." + error;
                         }
@@ -77796,9 +80821,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Session} Session
                      */
-                    Session.fromObject = function fromObject(object) {
+                    Session.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Session)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Session();
                         if (object.name != null)
                             message.name = String(object.name);
@@ -77806,18 +80835,21 @@
                             if (typeof object.labels !== "object")
                                 throw TypeError(".google.spanner.v1.Session.labels: object expected");
                             message.labels = {};
-                            for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i)
+                            for (var keys = Object.keys(object.labels), i = 0; i < keys.length; ++i) {
+                                if (keys[i] === "__proto__")
+                                    $util.makeProp(message.labels, keys[i]);
                                 message.labels[keys[i]] = String(object.labels[keys[i]]);
+                            }
                         }
                         if (object.createTime != null) {
                             if (typeof object.createTime !== "object")
                                 throw TypeError(".google.spanner.v1.Session.createTime: object expected");
-                            message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime);
+                            message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime, long + 1);
                         }
                         if (object.approximateLastUseTime != null) {
                             if (typeof object.approximateLastUseTime !== "object")
                                 throw TypeError(".google.spanner.v1.Session.approximateLastUseTime: object expected");
-                            message.approximateLastUseTime = $root.google.protobuf.Timestamp.fromObject(object.approximateLastUseTime);
+                            message.approximateLastUseTime = $root.google.protobuf.Timestamp.fromObject(object.approximateLastUseTime, long + 1);
                         }
                         if (object.creatorRole != null)
                             message.creatorRole = String(object.creatorRole);
@@ -77853,8 +80885,11 @@
                         var keys2;
                         if (message.labels && (keys2 = Object.keys(message.labels)).length) {
                             object.labels = {};
-                            for (var j = 0; j < keys2.length; ++j)
+                            for (var j = 0; j < keys2.length; ++j) {
+                                if (keys2[j] === "__proto__")
+                                    $util.makeProp(object.labels, keys2[j]);
                                 object.labels[keys2[j]] = message.labels[keys2[j]];
+                            }
                         }
                         if (message.createTime != null && message.hasOwnProperty("createTime"))
                             object.createTime = $root.google.protobuf.Timestamp.toObject(message.createTime, options);
@@ -77916,7 +80951,7 @@
                     function GetSessionRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -77981,9 +81016,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    GetSessionRequest.decode = function decode(reader, length, error) {
+                    GetSessionRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.GetSessionRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -77995,7 +81034,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -78026,9 +81065,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    GetSessionRequest.verify = function verify(message) {
+                    GetSessionRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.name != null && message.hasOwnProperty("name"))
                             if (!$util.isString(message.name))
                                 return "name: string expected";
@@ -78043,9 +81086,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.GetSessionRequest} GetSessionRequest
                      */
-                    GetSessionRequest.fromObject = function fromObject(object) {
+                    GetSessionRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.GetSessionRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.GetSessionRequest();
                         if (object.name != null)
                             message.name = String(object.name);
@@ -78124,7 +81171,7 @@
                     function ListSessionsRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -78219,9 +81266,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ListSessionsRequest.decode = function decode(reader, length, error) {
+                    ListSessionsRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ListSessionsRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -78245,7 +81296,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -78276,9 +81327,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ListSessionsRequest.verify = function verify(message) {
+                    ListSessionsRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.database != null && message.hasOwnProperty("database"))
                             if (!$util.isString(message.database))
                                 return "database: string expected";
@@ -78302,9 +81357,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ListSessionsRequest} ListSessionsRequest
                      */
-                    ListSessionsRequest.fromObject = function fromObject(object) {
+                    ListSessionsRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ListSessionsRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ListSessionsRequest();
                         if (object.database != null)
                             message.database = String(object.database);
@@ -78398,7 +81457,7 @@
                         this.sessions = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -78474,9 +81533,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ListSessionsResponse.decode = function decode(reader, length, error) {
+                    ListSessionsResponse.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ListSessionsResponse();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -78486,7 +81549,7 @@
                             case 1: {
                                     if (!(message.sessions && message.sessions.length))
                                         message.sessions = [];
-                                    message.sessions.push($root.google.spanner.v1.Session.decode(reader, reader.uint32()));
+                                    message.sessions.push($root.google.spanner.v1.Session.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 2: {
@@ -78494,7 +81557,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -78525,14 +81588,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ListSessionsResponse.verify = function verify(message) {
+                    ListSessionsResponse.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.sessions != null && message.hasOwnProperty("sessions")) {
                             if (!Array.isArray(message.sessions))
                                 return "sessions: array expected";
                             for (var i = 0; i < message.sessions.length; ++i) {
-                                var error = $root.google.spanner.v1.Session.verify(message.sessions[i]);
+                                var error = $root.google.spanner.v1.Session.verify(message.sessions[i], long + 1);
                                 if (error)
                                     return "sessions." + error;
                             }
@@ -78551,9 +81618,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ListSessionsResponse} ListSessionsResponse
                      */
-                    ListSessionsResponse.fromObject = function fromObject(object) {
+                    ListSessionsResponse.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ListSessionsResponse)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ListSessionsResponse();
                         if (object.sessions) {
                             if (!Array.isArray(object.sessions))
@@ -78562,7 +81633,7 @@
                             for (var i = 0; i < object.sessions.length; ++i) {
                                 if (typeof object.sessions[i] !== "object")
                                     throw TypeError(".google.spanner.v1.ListSessionsResponse.sessions: object expected");
-                                message.sessions[i] = $root.google.spanner.v1.Session.fromObject(object.sessions[i]);
+                                message.sessions[i] = $root.google.spanner.v1.Session.fromObject(object.sessions[i], long + 1);
                             }
                         }
                         if (object.nextPageToken != null)
@@ -78646,7 +81717,7 @@
                     function DeleteSessionRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -78711,9 +81782,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    DeleteSessionRequest.decode = function decode(reader, length, error) {
+                    DeleteSessionRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.DeleteSessionRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -78725,7 +81800,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -78756,9 +81831,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    DeleteSessionRequest.verify = function verify(message) {
+                    DeleteSessionRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.name != null && message.hasOwnProperty("name"))
                             if (!$util.isString(message.name))
                                 return "name: string expected";
@@ -78773,9 +81852,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.DeleteSessionRequest} DeleteSessionRequest
                      */
-                    DeleteSessionRequest.fromObject = function fromObject(object) {
+                    DeleteSessionRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.DeleteSessionRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.DeleteSessionRequest();
                         if (object.name != null)
                             message.name = String(object.name);
@@ -78854,7 +81937,7 @@
                     function RequestOptions(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -78949,9 +82032,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    RequestOptions.decode = function decode(reader, length, error) {
+                    RequestOptions.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.RequestOptions();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -78971,11 +82058,11 @@
                                     break;
                                 }
                             case 4: {
-                                    message.clientContext = $root.google.spanner.v1.RequestOptions.ClientContext.decode(reader, reader.uint32());
+                                    message.clientContext = $root.google.spanner.v1.RequestOptions.ClientContext.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -79006,9 +82093,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    RequestOptions.verify = function verify(message) {
+                    RequestOptions.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.priority != null && message.hasOwnProperty("priority"))
                             switch (message.priority) {
                             default:
@@ -79026,7 +82117,7 @@
                             if (!$util.isString(message.transactionTag))
                                 return "transactionTag: string expected";
                         if (message.clientContext != null && message.hasOwnProperty("clientContext")) {
-                            var error = $root.google.spanner.v1.RequestOptions.ClientContext.verify(message.clientContext);
+                            var error = $root.google.spanner.v1.RequestOptions.ClientContext.verify(message.clientContext, long + 1);
                             if (error)
                                 return "clientContext." + error;
                         }
@@ -79041,9 +82132,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.RequestOptions} RequestOptions
                      */
-                    RequestOptions.fromObject = function fromObject(object) {
+                    RequestOptions.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.RequestOptions)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.RequestOptions();
                         switch (object.priority) {
                         default:
@@ -79076,7 +82171,7 @@
                         if (object.clientContext != null) {
                             if (typeof object.clientContext !== "object")
                                 throw TypeError(".google.spanner.v1.RequestOptions.clientContext: object expected");
-                            message.clientContext = $root.google.spanner.v1.RequestOptions.ClientContext.fromObject(object.clientContext);
+                            message.clientContext = $root.google.spanner.v1.RequestOptions.ClientContext.fromObject(object.clientContext, long + 1);
                         }
                         return message;
                     };
@@ -79176,7 +82271,7 @@
                             this.secureContext = {};
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -79244,9 +82339,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ClientContext.decode = function decode(reader, length, error) {
+                        ClientContext.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.RequestOptions.ClientContext(), key, value;
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -79266,18 +82365,20 @@
                                                 key = reader.string();
                                                 break;
                                             case 2:
-                                                value = $root.google.protobuf.Value.decode(reader, reader.uint32());
+                                                value = $root.google.protobuf.Value.decode(reader, reader.uint32(), undefined, long + 1);
                                                 break;
                                             default:
-                                                reader.skipType(tag2 & 7);
+                                                reader.skipType(tag2 & 7, long);
                                                 break;
                                             }
                                         }
+                                        if (key === "__proto__")
+                                            $util.makeProp(message.secureContext, key);
                                         message.secureContext[key] = value;
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -79308,15 +82409,19 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ClientContext.verify = function verify(message) {
+                        ClientContext.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.secureContext != null && message.hasOwnProperty("secureContext")) {
                                 if (!$util.isObject(message.secureContext))
                                     return "secureContext: object expected";
                                 var key = Object.keys(message.secureContext);
                                 for (var i = 0; i < key.length; ++i) {
-                                    var error = $root.google.protobuf.Value.verify(message.secureContext[key[i]]);
+                                    var error = $root.google.protobuf.Value.verify(message.secureContext[key[i]], long + 1);
                                     if (error)
                                         return "secureContext." + error;
                                 }
@@ -79332,18 +82437,24 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.RequestOptions.ClientContext} ClientContext
                          */
-                        ClientContext.fromObject = function fromObject(object) {
+                        ClientContext.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.RequestOptions.ClientContext)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.RequestOptions.ClientContext();
                             if (object.secureContext) {
                                 if (typeof object.secureContext !== "object")
                                     throw TypeError(".google.spanner.v1.RequestOptions.ClientContext.secureContext: object expected");
                                 message.secureContext = {};
                                 for (var keys = Object.keys(object.secureContext), i = 0; i < keys.length; ++i) {
+                                    if (keys[i] === "__proto__")
+                                        $util.makeProp(message.secureContext, keys[i]);
                                     if (typeof object.secureContext[keys[i]] !== "object")
                                         throw TypeError(".google.spanner.v1.RequestOptions.ClientContext.secureContext: object expected");
-                                    message.secureContext[keys[i]] = $root.google.protobuf.Value.fromObject(object.secureContext[keys[i]]);
+                                    message.secureContext[keys[i]] = $root.google.protobuf.Value.fromObject(object.secureContext[keys[i]], long + 1);
                                 }
                             }
                             return message;
@@ -79367,8 +82478,11 @@
                             var keys2;
                             if (message.secureContext && (keys2 = Object.keys(message.secureContext)).length) {
                                 object.secureContext = {};
-                                for (var j = 0; j < keys2.length; ++j)
+                                for (var j = 0; j < keys2.length; ++j) {
+                                    if (keys2[j] === "__proto__")
+                                        $util.makeProp(object.secureContext, keys2[j]);
                                     object.secureContext[keys2[j]] = $root.google.protobuf.Value.toObject(message.secureContext[keys2[j]], options);
+                                }
                             }
                             return object;
                         };
@@ -79426,7 +82540,7 @@
                     function DirectedReadOptions(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -79515,9 +82629,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    DirectedReadOptions.decode = function decode(reader, length, error) {
+                    DirectedReadOptions.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.DirectedReadOptions();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -79525,15 +82643,15 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.includeReplicas = $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas.decode(reader, reader.uint32());
+                                    message.includeReplicas = $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.excludeReplicas = $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas.decode(reader, reader.uint32());
+                                    message.excludeReplicas = $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -79564,14 +82682,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    DirectedReadOptions.verify = function verify(message) {
+                    DirectedReadOptions.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.includeReplicas != null && message.hasOwnProperty("includeReplicas")) {
                             properties.replicas = 1;
                             {
-                                var error = $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas.verify(message.includeReplicas);
+                                var error = $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas.verify(message.includeReplicas, long + 1);
                                 if (error)
                                     return "includeReplicas." + error;
                             }
@@ -79581,7 +82703,7 @@
                                 return "replicas: multiple values";
                             properties.replicas = 1;
                             {
-                                var error = $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas.verify(message.excludeReplicas);
+                                var error = $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas.verify(message.excludeReplicas, long + 1);
                                 if (error)
                                     return "excludeReplicas." + error;
                             }
@@ -79597,19 +82719,23 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.DirectedReadOptions} DirectedReadOptions
                      */
-                    DirectedReadOptions.fromObject = function fromObject(object) {
+                    DirectedReadOptions.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.DirectedReadOptions)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.DirectedReadOptions();
                         if (object.includeReplicas != null) {
                             if (typeof object.includeReplicas !== "object")
                                 throw TypeError(".google.spanner.v1.DirectedReadOptions.includeReplicas: object expected");
-                            message.includeReplicas = $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas.fromObject(object.includeReplicas);
+                            message.includeReplicas = $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas.fromObject(object.includeReplicas, long + 1);
                         }
                         if (object.excludeReplicas != null) {
                             if (typeof object.excludeReplicas !== "object")
                                 throw TypeError(".google.spanner.v1.DirectedReadOptions.excludeReplicas: object expected");
-                            message.excludeReplicas = $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas.fromObject(object.excludeReplicas);
+                            message.excludeReplicas = $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas.fromObject(object.excludeReplicas, long + 1);
                         }
                         return message;
                     };
@@ -79687,7 +82813,7 @@
                         function ReplicaSelection(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -79762,9 +82888,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ReplicaSelection.decode = function decode(reader, length, error) {
+                        ReplicaSelection.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -79780,7 +82910,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -79811,9 +82941,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ReplicaSelection.verify = function verify(message) {
+                        ReplicaSelection.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.location != null && message.hasOwnProperty("location"))
                                 if (!$util.isString(message.location))
                                     return "location: string expected";
@@ -79837,9 +82971,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.DirectedReadOptions.ReplicaSelection} ReplicaSelection
                          */
-                        ReplicaSelection.fromObject = function fromObject(object) {
+                        ReplicaSelection.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection();
                             if (object.location != null)
                                 message.location = String(object.location);
@@ -79957,7 +83095,7 @@
                             this.replicaSelections = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -80033,9 +83171,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        IncludeReplicas.decode = function decode(reader, length, error) {
+                        IncludeReplicas.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -80045,7 +83187,7 @@
                                 case 1: {
                                         if (!(message.replicaSelections && message.replicaSelections.length))
                                             message.replicaSelections = [];
-                                        message.replicaSelections.push($root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.decode(reader, reader.uint32()));
+                                        message.replicaSelections.push($root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 2: {
@@ -80053,7 +83195,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -80084,14 +83226,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        IncludeReplicas.verify = function verify(message) {
+                        IncludeReplicas.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.replicaSelections != null && message.hasOwnProperty("replicaSelections")) {
                                 if (!Array.isArray(message.replicaSelections))
                                     return "replicaSelections: array expected";
                                 for (var i = 0; i < message.replicaSelections.length; ++i) {
-                                    var error = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.verify(message.replicaSelections[i]);
+                                    var error = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.verify(message.replicaSelections[i], long + 1);
                                     if (error)
                                         return "replicaSelections." + error;
                                 }
@@ -80110,9 +83256,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.DirectedReadOptions.IncludeReplicas} IncludeReplicas
                          */
-                        IncludeReplicas.fromObject = function fromObject(object) {
+                        IncludeReplicas.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.DirectedReadOptions.IncludeReplicas();
                             if (object.replicaSelections) {
                                 if (!Array.isArray(object.replicaSelections))
@@ -80121,7 +83271,7 @@
                                 for (var i = 0; i < object.replicaSelections.length; ++i) {
                                     if (typeof object.replicaSelections[i] !== "object")
                                         throw TypeError(".google.spanner.v1.DirectedReadOptions.IncludeReplicas.replicaSelections: object expected");
-                                    message.replicaSelections[i] = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.fromObject(object.replicaSelections[i]);
+                                    message.replicaSelections[i] = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.fromObject(object.replicaSelections[i], long + 1);
                                 }
                             }
                             if (object.autoFailoverDisabled != null)
@@ -80206,7 +83356,7 @@
                             this.replicaSelections = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -80272,9 +83422,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ExcludeReplicas.decode = function decode(reader, length, error) {
+                        ExcludeReplicas.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -80284,11 +83438,11 @@
                                 case 1: {
                                         if (!(message.replicaSelections && message.replicaSelections.length))
                                             message.replicaSelections = [];
-                                        message.replicaSelections.push($root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.decode(reader, reader.uint32()));
+                                        message.replicaSelections.push($root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -80319,14 +83473,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ExcludeReplicas.verify = function verify(message) {
+                        ExcludeReplicas.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.replicaSelections != null && message.hasOwnProperty("replicaSelections")) {
                                 if (!Array.isArray(message.replicaSelections))
                                     return "replicaSelections: array expected";
                                 for (var i = 0; i < message.replicaSelections.length; ++i) {
-                                    var error = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.verify(message.replicaSelections[i]);
+                                    var error = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.verify(message.replicaSelections[i], long + 1);
                                     if (error)
                                         return "replicaSelections." + error;
                                 }
@@ -80342,9 +83500,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.DirectedReadOptions.ExcludeReplicas} ExcludeReplicas
                          */
-                        ExcludeReplicas.fromObject = function fromObject(object) {
+                        ExcludeReplicas.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.DirectedReadOptions.ExcludeReplicas();
                             if (object.replicaSelections) {
                                 if (!Array.isArray(object.replicaSelections))
@@ -80353,7 +83515,7 @@
                                 for (var i = 0; i < object.replicaSelections.length; ++i) {
                                     if (typeof object.replicaSelections[i] !== "object")
                                         throw TypeError(".google.spanner.v1.DirectedReadOptions.ExcludeReplicas.replicaSelections: object expected");
-                                    message.replicaSelections[i] = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.fromObject(object.replicaSelections[i]);
+                                    message.replicaSelections[i] = $root.google.spanner.v1.DirectedReadOptions.ReplicaSelection.fromObject(object.replicaSelections[i], long + 1);
                                 }
                             }
                             return message;
@@ -80449,7 +83611,7 @@
                         this.paramTypes = {};
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -80657,9 +83819,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ExecuteSqlRequest.decode = function decode(reader, length, error) {
+                    ExecuteSqlRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ExecuteSqlRequest(), key, value;
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -80671,7 +83837,7 @@
                                     break;
                                 }
                             case 2: {
-                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32());
+                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
@@ -80679,7 +83845,7 @@
                                     break;
                                 }
                             case 4: {
-                                    message.params = $root.google.protobuf.Struct.decode(reader, reader.uint32());
+                                    message.params = $root.google.protobuf.Struct.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
@@ -80695,13 +83861,15 @@
                                             key = reader.string();
                                             break;
                                         case 2:
-                                            value = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                            value = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         default:
-                                            reader.skipType(tag2 & 7);
+                                            reader.skipType(tag2 & 7, long);
                                             break;
                                         }
                                     }
+                                    if (key === "__proto__")
+                                        $util.makeProp(message.paramTypes, key);
                                     message.paramTypes[key] = value;
                                     break;
                                 }
@@ -80722,15 +83890,15 @@
                                     break;
                                 }
                             case 10: {
-                                    message.queryOptions = $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions.decode(reader, reader.uint32());
+                                    message.queryOptions = $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 11: {
-                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32());
+                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 15: {
-                                    message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.decode(reader, reader.uint32());
+                                    message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 16: {
@@ -80742,11 +83910,11 @@
                                     break;
                                 }
                             case 18: {
-                                    message.routingHint = $root.google.spanner.v1.RoutingHint.decode(reader, reader.uint32());
+                                    message.routingHint = $root.google.spanner.v1.RoutingHint.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -80777,14 +83945,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ExecuteSqlRequest.verify = function verify(message) {
+                    ExecuteSqlRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
                         if (message.transaction != null && message.hasOwnProperty("transaction")) {
-                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction);
+                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction, long + 1);
                             if (error)
                                 return "transaction." + error;
                         }
@@ -80792,7 +83964,7 @@
                             if (!$util.isString(message.sql))
                                 return "sql: string expected";
                         if (message.params != null && message.hasOwnProperty("params")) {
-                            var error = $root.google.protobuf.Struct.verify(message.params);
+                            var error = $root.google.protobuf.Struct.verify(message.params, long + 1);
                             if (error)
                                 return "params." + error;
                         }
@@ -80801,7 +83973,7 @@
                                 return "paramTypes: object expected";
                             var key = Object.keys(message.paramTypes);
                             for (var i = 0; i < key.length; ++i) {
-                                var error = $root.google.spanner.v1.Type.verify(message.paramTypes[key[i]]);
+                                var error = $root.google.spanner.v1.Type.verify(message.paramTypes[key[i]], long + 1);
                                 if (error)
                                     return "paramTypes." + error;
                             }
@@ -80827,17 +83999,17 @@
                             if (!$util.isInteger(message.seqno) && !(message.seqno && $util.isInteger(message.seqno.low) && $util.isInteger(message.seqno.high)))
                                 return "seqno: integer|Long expected";
                         if (message.queryOptions != null && message.hasOwnProperty("queryOptions")) {
-                            var error = $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions.verify(message.queryOptions);
+                            var error = $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions.verify(message.queryOptions, long + 1);
                             if (error)
                                 return "queryOptions." + error;
                         }
                         if (message.requestOptions != null && message.hasOwnProperty("requestOptions")) {
-                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions);
+                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions, long + 1);
                             if (error)
                                 return "requestOptions." + error;
                         }
                         if (message.directedReadOptions != null && message.hasOwnProperty("directedReadOptions")) {
-                            var error = $root.google.spanner.v1.DirectedReadOptions.verify(message.directedReadOptions);
+                            var error = $root.google.spanner.v1.DirectedReadOptions.verify(message.directedReadOptions, long + 1);
                             if (error)
                                 return "directedReadOptions." + error;
                         }
@@ -80848,7 +84020,7 @@
                             if (typeof message.lastStatement !== "boolean")
                                 return "lastStatement: boolean expected";
                         if (message.routingHint != null && message.hasOwnProperty("routingHint")) {
-                            var error = $root.google.spanner.v1.RoutingHint.verify(message.routingHint);
+                            var error = $root.google.spanner.v1.RoutingHint.verify(message.routingHint, long + 1);
                             if (error)
                                 return "routingHint." + error;
                         }
@@ -80863,32 +84035,38 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ExecuteSqlRequest} ExecuteSqlRequest
                      */
-                    ExecuteSqlRequest.fromObject = function fromObject(object) {
+                    ExecuteSqlRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ExecuteSqlRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ExecuteSqlRequest();
                         if (object.session != null)
                             message.session = String(object.session);
                         if (object.transaction != null) {
                             if (typeof object.transaction !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteSqlRequest.transaction: object expected");
-                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction);
+                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction, long + 1);
                         }
                         if (object.sql != null)
                             message.sql = String(object.sql);
                         if (object.params != null) {
                             if (typeof object.params !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteSqlRequest.params: object expected");
-                            message.params = $root.google.protobuf.Struct.fromObject(object.params);
+                            message.params = $root.google.protobuf.Struct.fromObject(object.params, long + 1);
                         }
                         if (object.paramTypes) {
                             if (typeof object.paramTypes !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteSqlRequest.paramTypes: object expected");
                             message.paramTypes = {};
                             for (var keys = Object.keys(object.paramTypes), i = 0; i < keys.length; ++i) {
+                                if (keys[i] === "__proto__")
+                                    $util.makeProp(message.paramTypes, keys[i]);
                                 if (typeof object.paramTypes[keys[i]] !== "object")
                                     throw TypeError(".google.spanner.v1.ExecuteSqlRequest.paramTypes: object expected");
-                                message.paramTypes[keys[i]] = $root.google.spanner.v1.Type.fromObject(object.paramTypes[keys[i]]);
+                                message.paramTypes[keys[i]] = $root.google.spanner.v1.Type.fromObject(object.paramTypes[keys[i]], long + 1);
                             }
                         }
                         if (object.resumeToken != null)
@@ -80941,17 +84119,17 @@
                         if (object.queryOptions != null) {
                             if (typeof object.queryOptions !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteSqlRequest.queryOptions: object expected");
-                            message.queryOptions = $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions.fromObject(object.queryOptions);
+                            message.queryOptions = $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions.fromObject(object.queryOptions, long + 1);
                         }
                         if (object.requestOptions != null) {
                             if (typeof object.requestOptions !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteSqlRequest.requestOptions: object expected");
-                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions);
+                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions, long + 1);
                         }
                         if (object.directedReadOptions != null) {
                             if (typeof object.directedReadOptions !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteSqlRequest.directedReadOptions: object expected");
-                            message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.fromObject(object.directedReadOptions);
+                            message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.fromObject(object.directedReadOptions, long + 1);
                         }
                         if (object.dataBoostEnabled != null)
                             message.dataBoostEnabled = Boolean(object.dataBoostEnabled);
@@ -80960,7 +84138,7 @@
                         if (object.routingHint != null) {
                             if (typeof object.routingHint !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteSqlRequest.routingHint: object expected");
-                            message.routingHint = $root.google.spanner.v1.RoutingHint.fromObject(object.routingHint);
+                            message.routingHint = $root.google.spanner.v1.RoutingHint.fromObject(object.routingHint, long + 1);
                         }
                         return message;
                     };
@@ -81023,8 +84201,11 @@
                         var keys2;
                         if (message.paramTypes && (keys2 = Object.keys(message.paramTypes)).length) {
                             object.paramTypes = {};
-                            for (var j = 0; j < keys2.length; ++j)
+                            for (var j = 0; j < keys2.length; ++j) {
+                                if (keys2[j] === "__proto__")
+                                    $util.makeProp(object.paramTypes, keys2[j]);
                                 object.paramTypes[keys2[j]] = $root.google.spanner.v1.Type.toObject(message.paramTypes[keys2[j]], options);
+                            }
                         }
                         if (message.resumeToken != null && message.hasOwnProperty("resumeToken"))
                             object.resumeToken = options.bytes === String ? $util.base64.encode(message.resumeToken, 0, message.resumeToken.length) : options.bytes === Array ? Array.prototype.slice.call(message.resumeToken) : message.resumeToken;
@@ -81119,7 +84300,7 @@
                         function QueryOptions(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -81194,9 +84375,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        QueryOptions.decode = function decode(reader, length, error) {
+                        QueryOptions.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -81212,7 +84397,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -81243,9 +84428,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        QueryOptions.verify = function verify(message) {
+                        QueryOptions.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.optimizerVersion != null && message.hasOwnProperty("optimizerVersion"))
                                 if (!$util.isString(message.optimizerVersion))
                                     return "optimizerVersion: string expected";
@@ -81263,9 +84452,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.ExecuteSqlRequest.QueryOptions} QueryOptions
                          */
-                        QueryOptions.fromObject = function fromObject(object) {
+                        QueryOptions.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.ExecuteSqlRequest.QueryOptions();
                             if (object.optimizerVersion != null)
                                 message.optimizerVersion = String(object.optimizerVersion);
@@ -81356,7 +84549,7 @@
                         this.statements = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -81472,9 +84665,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ExecuteBatchDmlRequest.decode = function decode(reader, length, error) {
+                    ExecuteBatchDmlRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ExecuteBatchDmlRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -81486,13 +84683,13 @@
                                     break;
                                 }
                             case 2: {
-                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32());
+                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
                                     if (!(message.statements && message.statements.length))
                                         message.statements = [];
-                                    message.statements.push($root.google.spanner.v1.ExecuteBatchDmlRequest.Statement.decode(reader, reader.uint32()));
+                                    message.statements.push($root.google.spanner.v1.ExecuteBatchDmlRequest.Statement.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 4: {
@@ -81500,7 +84697,7 @@
                                     break;
                                 }
                             case 5: {
-                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32());
+                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 6: {
@@ -81508,7 +84705,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -81539,14 +84736,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ExecuteBatchDmlRequest.verify = function verify(message) {
+                    ExecuteBatchDmlRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
                         if (message.transaction != null && message.hasOwnProperty("transaction")) {
-                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction);
+                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction, long + 1);
                             if (error)
                                 return "transaction." + error;
                         }
@@ -81554,7 +84755,7 @@
                             if (!Array.isArray(message.statements))
                                 return "statements: array expected";
                             for (var i = 0; i < message.statements.length; ++i) {
-                                var error = $root.google.spanner.v1.ExecuteBatchDmlRequest.Statement.verify(message.statements[i]);
+                                var error = $root.google.spanner.v1.ExecuteBatchDmlRequest.Statement.verify(message.statements[i], long + 1);
                                 if (error)
                                     return "statements." + error;
                             }
@@ -81563,7 +84764,7 @@
                             if (!$util.isInteger(message.seqno) && !(message.seqno && $util.isInteger(message.seqno.low) && $util.isInteger(message.seqno.high)))
                                 return "seqno: integer|Long expected";
                         if (message.requestOptions != null && message.hasOwnProperty("requestOptions")) {
-                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions);
+                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions, long + 1);
                             if (error)
                                 return "requestOptions." + error;
                         }
@@ -81581,16 +84782,20 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ExecuteBatchDmlRequest} ExecuteBatchDmlRequest
                      */
-                    ExecuteBatchDmlRequest.fromObject = function fromObject(object) {
+                    ExecuteBatchDmlRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ExecuteBatchDmlRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ExecuteBatchDmlRequest();
                         if (object.session != null)
                             message.session = String(object.session);
                         if (object.transaction != null) {
                             if (typeof object.transaction !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteBatchDmlRequest.transaction: object expected");
-                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction);
+                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction, long + 1);
                         }
                         if (object.statements) {
                             if (!Array.isArray(object.statements))
@@ -81599,7 +84804,7 @@
                             for (var i = 0; i < object.statements.length; ++i) {
                                 if (typeof object.statements[i] !== "object")
                                     throw TypeError(".google.spanner.v1.ExecuteBatchDmlRequest.statements: object expected");
-                                message.statements[i] = $root.google.spanner.v1.ExecuteBatchDmlRequest.Statement.fromObject(object.statements[i]);
+                                message.statements[i] = $root.google.spanner.v1.ExecuteBatchDmlRequest.Statement.fromObject(object.statements[i], long + 1);
                             }
                         }
                         if (object.seqno != null)
@@ -81614,7 +84819,7 @@
                         if (object.requestOptions != null) {
                             if (typeof object.requestOptions !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteBatchDmlRequest.requestOptions: object expected");
-                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions);
+                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions, long + 1);
                         }
                         if (object.lastStatements != null)
                             message.lastStatements = Boolean(object.lastStatements);
@@ -81717,7 +84922,7 @@
                             this.paramTypes = {};
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -81805,9 +85010,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Statement.decode = function decode(reader, length, error) {
+                        Statement.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ExecuteBatchDmlRequest.Statement(), key, value;
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -81819,7 +85028,7 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.params = $root.google.protobuf.Struct.decode(reader, reader.uint32());
+                                        message.params = $root.google.protobuf.Struct.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
@@ -81835,18 +85044,20 @@
                                                 key = reader.string();
                                                 break;
                                             case 2:
-                                                value = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                                value = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                                 break;
                                             default:
-                                                reader.skipType(tag2 & 7);
+                                                reader.skipType(tag2 & 7, long);
                                                 break;
                                             }
                                         }
+                                        if (key === "__proto__")
+                                            $util.makeProp(message.paramTypes, key);
                                         message.paramTypes[key] = value;
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -81877,14 +85088,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Statement.verify = function verify(message) {
+                        Statement.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.sql != null && message.hasOwnProperty("sql"))
                                 if (!$util.isString(message.sql))
                                     return "sql: string expected";
                             if (message.params != null && message.hasOwnProperty("params")) {
-                                var error = $root.google.protobuf.Struct.verify(message.params);
+                                var error = $root.google.protobuf.Struct.verify(message.params, long + 1);
                                 if (error)
                                     return "params." + error;
                             }
@@ -81893,7 +85108,7 @@
                                     return "paramTypes: object expected";
                                 var key = Object.keys(message.paramTypes);
                                 for (var i = 0; i < key.length; ++i) {
-                                    var error = $root.google.spanner.v1.Type.verify(message.paramTypes[key[i]]);
+                                    var error = $root.google.spanner.v1.Type.verify(message.paramTypes[key[i]], long + 1);
                                     if (error)
                                         return "paramTypes." + error;
                                 }
@@ -81909,25 +85124,31 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.ExecuteBatchDmlRequest.Statement} Statement
                          */
-                        Statement.fromObject = function fromObject(object) {
+                        Statement.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.ExecuteBatchDmlRequest.Statement)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.ExecuteBatchDmlRequest.Statement();
                             if (object.sql != null)
                                 message.sql = String(object.sql);
                             if (object.params != null) {
                                 if (typeof object.params !== "object")
                                     throw TypeError(".google.spanner.v1.ExecuteBatchDmlRequest.Statement.params: object expected");
-                                message.params = $root.google.protobuf.Struct.fromObject(object.params);
+                                message.params = $root.google.protobuf.Struct.fromObject(object.params, long + 1);
                             }
                             if (object.paramTypes) {
                                 if (typeof object.paramTypes !== "object")
                                     throw TypeError(".google.spanner.v1.ExecuteBatchDmlRequest.Statement.paramTypes: object expected");
                                 message.paramTypes = {};
                                 for (var keys = Object.keys(object.paramTypes), i = 0; i < keys.length; ++i) {
+                                    if (keys[i] === "__proto__")
+                                        $util.makeProp(message.paramTypes, keys[i]);
                                     if (typeof object.paramTypes[keys[i]] !== "object")
                                         throw TypeError(".google.spanner.v1.ExecuteBatchDmlRequest.Statement.paramTypes: object expected");
-                                    message.paramTypes[keys[i]] = $root.google.spanner.v1.Type.fromObject(object.paramTypes[keys[i]]);
+                                    message.paramTypes[keys[i]] = $root.google.spanner.v1.Type.fromObject(object.paramTypes[keys[i]], long + 1);
                                 }
                             }
                             return message;
@@ -81959,8 +85180,11 @@
                             var keys2;
                             if (message.paramTypes && (keys2 = Object.keys(message.paramTypes)).length) {
                                 object.paramTypes = {};
-                                for (var j = 0; j < keys2.length; ++j)
+                                for (var j = 0; j < keys2.length; ++j) {
+                                    if (keys2[j] === "__proto__")
+                                        $util.makeProp(object.paramTypes, keys2[j]);
                                     object.paramTypes[keys2[j]] = $root.google.spanner.v1.Type.toObject(message.paramTypes[keys2[j]], options);
+                                }
                             }
                             return object;
                         };
@@ -82020,7 +85244,7 @@
                         this.resultSets = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -82106,9 +85330,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ExecuteBatchDmlResponse.decode = function decode(reader, length, error) {
+                    ExecuteBatchDmlResponse.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ExecuteBatchDmlResponse();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -82118,19 +85346,19 @@
                             case 1: {
                                     if (!(message.resultSets && message.resultSets.length))
                                         message.resultSets = [];
-                                    message.resultSets.push($root.google.spanner.v1.ResultSet.decode(reader, reader.uint32()));
+                                    message.resultSets.push($root.google.spanner.v1.ResultSet.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 2: {
-                                    message.status = $root.google.rpc.Status.decode(reader, reader.uint32());
+                                    message.status = $root.google.rpc.Status.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32());
+                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -82161,25 +85389,29 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ExecuteBatchDmlResponse.verify = function verify(message) {
+                    ExecuteBatchDmlResponse.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.resultSets != null && message.hasOwnProperty("resultSets")) {
                             if (!Array.isArray(message.resultSets))
                                 return "resultSets: array expected";
                             for (var i = 0; i < message.resultSets.length; ++i) {
-                                var error = $root.google.spanner.v1.ResultSet.verify(message.resultSets[i]);
+                                var error = $root.google.spanner.v1.ResultSet.verify(message.resultSets[i], long + 1);
                                 if (error)
                                     return "resultSets." + error;
                             }
                         }
                         if (message.status != null && message.hasOwnProperty("status")) {
-                            var error = $root.google.rpc.Status.verify(message.status);
+                            var error = $root.google.rpc.Status.verify(message.status, long + 1);
                             if (error)
                                 return "status." + error;
                         }
                         if (message.precommitToken != null && message.hasOwnProperty("precommitToken")) {
-                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken);
+                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken, long + 1);
                             if (error)
                                 return "precommitToken." + error;
                         }
@@ -82194,9 +85426,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ExecuteBatchDmlResponse} ExecuteBatchDmlResponse
                      */
-                    ExecuteBatchDmlResponse.fromObject = function fromObject(object) {
+                    ExecuteBatchDmlResponse.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ExecuteBatchDmlResponse)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ExecuteBatchDmlResponse();
                         if (object.resultSets) {
                             if (!Array.isArray(object.resultSets))
@@ -82205,18 +85441,18 @@
                             for (var i = 0; i < object.resultSets.length; ++i) {
                                 if (typeof object.resultSets[i] !== "object")
                                     throw TypeError(".google.spanner.v1.ExecuteBatchDmlResponse.resultSets: object expected");
-                                message.resultSets[i] = $root.google.spanner.v1.ResultSet.fromObject(object.resultSets[i]);
+                                message.resultSets[i] = $root.google.spanner.v1.ResultSet.fromObject(object.resultSets[i], long + 1);
                             }
                         }
                         if (object.status != null) {
                             if (typeof object.status !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteBatchDmlResponse.status: object expected");
-                            message.status = $root.google.rpc.Status.fromObject(object.status);
+                            message.status = $root.google.rpc.Status.fromObject(object.status, long + 1);
                         }
                         if (object.precommitToken != null) {
                             if (typeof object.precommitToken !== "object")
                                 throw TypeError(".google.spanner.v1.ExecuteBatchDmlResponse.precommitToken: object expected");
-                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken);
+                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken, long + 1);
                         }
                         return message;
                     };
@@ -82302,7 +85538,7 @@
                     function PartitionOptions(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -82377,9 +85613,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    PartitionOptions.decode = function decode(reader, length, error) {
+                    PartitionOptions.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PartitionOptions();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -82395,7 +85635,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -82426,9 +85666,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    PartitionOptions.verify = function verify(message) {
+                    PartitionOptions.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.partitionSizeBytes != null && message.hasOwnProperty("partitionSizeBytes"))
                             if (!$util.isInteger(message.partitionSizeBytes) && !(message.partitionSizeBytes && $util.isInteger(message.partitionSizeBytes.low) && $util.isInteger(message.partitionSizeBytes.high)))
                                 return "partitionSizeBytes: integer|Long expected";
@@ -82446,9 +85690,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.PartitionOptions} PartitionOptions
                      */
-                    PartitionOptions.fromObject = function fromObject(object) {
+                    PartitionOptions.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.PartitionOptions)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.PartitionOptions();
                         if (object.partitionSizeBytes != null)
                             if ($util.Long)
@@ -82564,7 +85812,7 @@
                         this.paramTypes = {};
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -82682,9 +85930,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    PartitionQueryRequest.decode = function decode(reader, length, error) {
+                    PartitionQueryRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PartitionQueryRequest(), key, value;
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -82696,7 +85948,7 @@
                                     break;
                                 }
                             case 2: {
-                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32());
+                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
@@ -82704,7 +85956,7 @@
                                     break;
                                 }
                             case 4: {
-                                    message.params = $root.google.protobuf.Struct.decode(reader, reader.uint32());
+                                    message.params = $root.google.protobuf.Struct.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
@@ -82720,22 +85972,24 @@
                                             key = reader.string();
                                             break;
                                         case 2:
-                                            value = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                            value = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         default:
-                                            reader.skipType(tag2 & 7);
+                                            reader.skipType(tag2 & 7, long);
                                             break;
                                         }
                                     }
+                                    if (key === "__proto__")
+                                        $util.makeProp(message.paramTypes, key);
                                     message.paramTypes[key] = value;
                                     break;
                                 }
                             case 6: {
-                                    message.partitionOptions = $root.google.spanner.v1.PartitionOptions.decode(reader, reader.uint32());
+                                    message.partitionOptions = $root.google.spanner.v1.PartitionOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -82766,14 +86020,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    PartitionQueryRequest.verify = function verify(message) {
+                    PartitionQueryRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
                         if (message.transaction != null && message.hasOwnProperty("transaction")) {
-                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction);
+                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction, long + 1);
                             if (error)
                                 return "transaction." + error;
                         }
@@ -82781,7 +86039,7 @@
                             if (!$util.isString(message.sql))
                                 return "sql: string expected";
                         if (message.params != null && message.hasOwnProperty("params")) {
-                            var error = $root.google.protobuf.Struct.verify(message.params);
+                            var error = $root.google.protobuf.Struct.verify(message.params, long + 1);
                             if (error)
                                 return "params." + error;
                         }
@@ -82790,13 +86048,13 @@
                                 return "paramTypes: object expected";
                             var key = Object.keys(message.paramTypes);
                             for (var i = 0; i < key.length; ++i) {
-                                var error = $root.google.spanner.v1.Type.verify(message.paramTypes[key[i]]);
+                                var error = $root.google.spanner.v1.Type.verify(message.paramTypes[key[i]], long + 1);
                                 if (error)
                                     return "paramTypes." + error;
                             }
                         }
                         if (message.partitionOptions != null && message.hasOwnProperty("partitionOptions")) {
-                            var error = $root.google.spanner.v1.PartitionOptions.verify(message.partitionOptions);
+                            var error = $root.google.spanner.v1.PartitionOptions.verify(message.partitionOptions, long + 1);
                             if (error)
                                 return "partitionOptions." + error;
                         }
@@ -82811,38 +86069,44 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.PartitionQueryRequest} PartitionQueryRequest
                      */
-                    PartitionQueryRequest.fromObject = function fromObject(object) {
+                    PartitionQueryRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.PartitionQueryRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.PartitionQueryRequest();
                         if (object.session != null)
                             message.session = String(object.session);
                         if (object.transaction != null) {
                             if (typeof object.transaction !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionQueryRequest.transaction: object expected");
-                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction);
+                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction, long + 1);
                         }
                         if (object.sql != null)
                             message.sql = String(object.sql);
                         if (object.params != null) {
                             if (typeof object.params !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionQueryRequest.params: object expected");
-                            message.params = $root.google.protobuf.Struct.fromObject(object.params);
+                            message.params = $root.google.protobuf.Struct.fromObject(object.params, long + 1);
                         }
                         if (object.paramTypes) {
                             if (typeof object.paramTypes !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionQueryRequest.paramTypes: object expected");
                             message.paramTypes = {};
                             for (var keys = Object.keys(object.paramTypes), i = 0; i < keys.length; ++i) {
+                                if (keys[i] === "__proto__")
+                                    $util.makeProp(message.paramTypes, keys[i]);
                                 if (typeof object.paramTypes[keys[i]] !== "object")
                                     throw TypeError(".google.spanner.v1.PartitionQueryRequest.paramTypes: object expected");
-                                message.paramTypes[keys[i]] = $root.google.spanner.v1.Type.fromObject(object.paramTypes[keys[i]]);
+                                message.paramTypes[keys[i]] = $root.google.spanner.v1.Type.fromObject(object.paramTypes[keys[i]], long + 1);
                             }
                         }
                         if (object.partitionOptions != null) {
                             if (typeof object.partitionOptions !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionQueryRequest.partitionOptions: object expected");
-                            message.partitionOptions = $root.google.spanner.v1.PartitionOptions.fromObject(object.partitionOptions);
+                            message.partitionOptions = $root.google.spanner.v1.PartitionOptions.fromObject(object.partitionOptions, long + 1);
                         }
                         return message;
                     };
@@ -82880,8 +86144,11 @@
                         var keys2;
                         if (message.paramTypes && (keys2 = Object.keys(message.paramTypes)).length) {
                             object.paramTypes = {};
-                            for (var j = 0; j < keys2.length; ++j)
+                            for (var j = 0; j < keys2.length; ++j) {
+                                if (keys2[j] === "__proto__")
+                                    $util.makeProp(object.paramTypes, keys2[j]);
                                 object.paramTypes[keys2[j]] = $root.google.spanner.v1.Type.toObject(message.paramTypes[keys2[j]], options);
+                            }
                         }
                         if (message.partitionOptions != null && message.hasOwnProperty("partitionOptions"))
                             object.partitionOptions = $root.google.spanner.v1.PartitionOptions.toObject(message.partitionOptions, options);
@@ -82944,7 +86211,7 @@
                         this.columns = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -83070,9 +86337,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    PartitionReadRequest.decode = function decode(reader, length, error) {
+                    PartitionReadRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PartitionReadRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -83084,7 +86355,7 @@
                                     break;
                                 }
                             case 2: {
-                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32());
+                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
@@ -83102,15 +86373,15 @@
                                     break;
                                 }
                             case 6: {
-                                    message.keySet = $root.google.spanner.v1.KeySet.decode(reader, reader.uint32());
+                                    message.keySet = $root.google.spanner.v1.KeySet.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 9: {
-                                    message.partitionOptions = $root.google.spanner.v1.PartitionOptions.decode(reader, reader.uint32());
+                                    message.partitionOptions = $root.google.spanner.v1.PartitionOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -83141,14 +86412,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    PartitionReadRequest.verify = function verify(message) {
+                    PartitionReadRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
                         if (message.transaction != null && message.hasOwnProperty("transaction")) {
-                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction);
+                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction, long + 1);
                             if (error)
                                 return "transaction." + error;
                         }
@@ -83166,12 +86441,12 @@
                                     return "columns: string[] expected";
                         }
                         if (message.keySet != null && message.hasOwnProperty("keySet")) {
-                            var error = $root.google.spanner.v1.KeySet.verify(message.keySet);
+                            var error = $root.google.spanner.v1.KeySet.verify(message.keySet, long + 1);
                             if (error)
                                 return "keySet." + error;
                         }
                         if (message.partitionOptions != null && message.hasOwnProperty("partitionOptions")) {
-                            var error = $root.google.spanner.v1.PartitionOptions.verify(message.partitionOptions);
+                            var error = $root.google.spanner.v1.PartitionOptions.verify(message.partitionOptions, long + 1);
                             if (error)
                                 return "partitionOptions." + error;
                         }
@@ -83186,16 +86461,20 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.PartitionReadRequest} PartitionReadRequest
                      */
-                    PartitionReadRequest.fromObject = function fromObject(object) {
+                    PartitionReadRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.PartitionReadRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.PartitionReadRequest();
                         if (object.session != null)
                             message.session = String(object.session);
                         if (object.transaction != null) {
                             if (typeof object.transaction !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionReadRequest.transaction: object expected");
-                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction);
+                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction, long + 1);
                         }
                         if (object.table != null)
                             message.table = String(object.table);
@@ -83211,12 +86490,12 @@
                         if (object.keySet != null) {
                             if (typeof object.keySet !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionReadRequest.keySet: object expected");
-                            message.keySet = $root.google.spanner.v1.KeySet.fromObject(object.keySet);
+                            message.keySet = $root.google.spanner.v1.KeySet.fromObject(object.keySet, long + 1);
                         }
                         if (object.partitionOptions != null) {
                             if (typeof object.partitionOptions !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionReadRequest.partitionOptions: object expected");
-                            message.partitionOptions = $root.google.spanner.v1.PartitionOptions.fromObject(object.partitionOptions);
+                            message.partitionOptions = $root.google.spanner.v1.PartitionOptions.fromObject(object.partitionOptions, long + 1);
                         }
                         return message;
                     };
@@ -83313,7 +86592,7 @@
                     function Partition(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -83378,9 +86657,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Partition.decode = function decode(reader, length, error) {
+                    Partition.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Partition();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -83392,7 +86675,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -83423,9 +86706,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Partition.verify = function verify(message) {
+                    Partition.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.partitionToken != null && message.hasOwnProperty("partitionToken"))
                             if (!(message.partitionToken && typeof message.partitionToken.length === "number" || $util.isString(message.partitionToken)))
                                 return "partitionToken: buffer expected";
@@ -83440,9 +86727,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Partition} Partition
                      */
-                    Partition.fromObject = function fromObject(object) {
+                    Partition.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Partition)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Partition();
                         if (object.partitionToken != null)
                             if (typeof object.partitionToken === "string")
@@ -83529,7 +86820,7 @@
                         this.partitions = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -83605,9 +86896,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    PartitionResponse.decode = function decode(reader, length, error) {
+                    PartitionResponse.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PartitionResponse();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -83617,15 +86912,15 @@
                             case 1: {
                                     if (!(message.partitions && message.partitions.length))
                                         message.partitions = [];
-                                    message.partitions.push($root.google.spanner.v1.Partition.decode(reader, reader.uint32()));
+                                    message.partitions.push($root.google.spanner.v1.Partition.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 2: {
-                                    message.transaction = $root.google.spanner.v1.Transaction.decode(reader, reader.uint32());
+                                    message.transaction = $root.google.spanner.v1.Transaction.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -83656,20 +86951,24 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    PartitionResponse.verify = function verify(message) {
+                    PartitionResponse.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.partitions != null && message.hasOwnProperty("partitions")) {
                             if (!Array.isArray(message.partitions))
                                 return "partitions: array expected";
                             for (var i = 0; i < message.partitions.length; ++i) {
-                                var error = $root.google.spanner.v1.Partition.verify(message.partitions[i]);
+                                var error = $root.google.spanner.v1.Partition.verify(message.partitions[i], long + 1);
                                 if (error)
                                     return "partitions." + error;
                             }
                         }
                         if (message.transaction != null && message.hasOwnProperty("transaction")) {
-                            var error = $root.google.spanner.v1.Transaction.verify(message.transaction);
+                            var error = $root.google.spanner.v1.Transaction.verify(message.transaction, long + 1);
                             if (error)
                                 return "transaction." + error;
                         }
@@ -83684,9 +86983,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.PartitionResponse} PartitionResponse
                      */
-                    PartitionResponse.fromObject = function fromObject(object) {
+                    PartitionResponse.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.PartitionResponse)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.PartitionResponse();
                         if (object.partitions) {
                             if (!Array.isArray(object.partitions))
@@ -83695,13 +86998,13 @@
                             for (var i = 0; i < object.partitions.length; ++i) {
                                 if (typeof object.partitions[i] !== "object")
                                     throw TypeError(".google.spanner.v1.PartitionResponse.partitions: object expected");
-                                message.partitions[i] = $root.google.spanner.v1.Partition.fromObject(object.partitions[i]);
+                                message.partitions[i] = $root.google.spanner.v1.Partition.fromObject(object.partitions[i], long + 1);
                             }
                         }
                         if (object.transaction != null) {
                             if (typeof object.transaction !== "object")
                                 throw TypeError(".google.spanner.v1.PartitionResponse.transaction: object expected");
-                            message.transaction = $root.google.spanner.v1.Transaction.fromObject(object.transaction);
+                            message.transaction = $root.google.spanner.v1.Transaction.fromObject(object.transaction, long + 1);
                         }
                         return message;
                     };
@@ -83797,7 +87100,7 @@
                         this.columns = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -84003,9 +87306,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ReadRequest.decode = function decode(reader, length, error) {
+                    ReadRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ReadRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -84017,7 +87324,7 @@
                                     break;
                                 }
                             case 2: {
-                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32());
+                                    message.transaction = $root.google.spanner.v1.TransactionSelector.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
@@ -84035,7 +87342,7 @@
                                     break;
                                 }
                             case 6: {
-                                    message.keySet = $root.google.spanner.v1.KeySet.decode(reader, reader.uint32());
+                                    message.keySet = $root.google.spanner.v1.KeySet.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 8: {
@@ -84051,11 +87358,11 @@
                                     break;
                                 }
                             case 11: {
-                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32());
+                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 14: {
-                                    message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.decode(reader, reader.uint32());
+                                    message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 15: {
@@ -84071,11 +87378,11 @@
                                     break;
                                 }
                             case 18: {
-                                    message.routingHint = $root.google.spanner.v1.RoutingHint.decode(reader, reader.uint32());
+                                    message.routingHint = $root.google.spanner.v1.RoutingHint.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -84106,14 +87413,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ReadRequest.verify = function verify(message) {
+                    ReadRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
                         if (message.transaction != null && message.hasOwnProperty("transaction")) {
-                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction);
+                            var error = $root.google.spanner.v1.TransactionSelector.verify(message.transaction, long + 1);
                             if (error)
                                 return "transaction." + error;
                         }
@@ -84131,7 +87442,7 @@
                                     return "columns: string[] expected";
                         }
                         if (message.keySet != null && message.hasOwnProperty("keySet")) {
-                            var error = $root.google.spanner.v1.KeySet.verify(message.keySet);
+                            var error = $root.google.spanner.v1.KeySet.verify(message.keySet, long + 1);
                             if (error)
                                 return "keySet." + error;
                         }
@@ -84145,12 +87456,12 @@
                             if (!(message.partitionToken && typeof message.partitionToken.length === "number" || $util.isString(message.partitionToken)))
                                 return "partitionToken: buffer expected";
                         if (message.requestOptions != null && message.hasOwnProperty("requestOptions")) {
-                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions);
+                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions, long + 1);
                             if (error)
                                 return "requestOptions." + error;
                         }
                         if (message.directedReadOptions != null && message.hasOwnProperty("directedReadOptions")) {
-                            var error = $root.google.spanner.v1.DirectedReadOptions.verify(message.directedReadOptions);
+                            var error = $root.google.spanner.v1.DirectedReadOptions.verify(message.directedReadOptions, long + 1);
                             if (error)
                                 return "directedReadOptions." + error;
                         }
@@ -84176,7 +87487,7 @@
                                 break;
                             }
                         if (message.routingHint != null && message.hasOwnProperty("routingHint")) {
-                            var error = $root.google.spanner.v1.RoutingHint.verify(message.routingHint);
+                            var error = $root.google.spanner.v1.RoutingHint.verify(message.routingHint, long + 1);
                             if (error)
                                 return "routingHint." + error;
                         }
@@ -84191,16 +87502,20 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ReadRequest} ReadRequest
                      */
-                    ReadRequest.fromObject = function fromObject(object) {
+                    ReadRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ReadRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ReadRequest();
                         if (object.session != null)
                             message.session = String(object.session);
                         if (object.transaction != null) {
                             if (typeof object.transaction !== "object")
                                 throw TypeError(".google.spanner.v1.ReadRequest.transaction: object expected");
-                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction);
+                            message.transaction = $root.google.spanner.v1.TransactionSelector.fromObject(object.transaction, long + 1);
                         }
                         if (object.table != null)
                             message.table = String(object.table);
@@ -84216,7 +87531,7 @@
                         if (object.keySet != null) {
                             if (typeof object.keySet !== "object")
                                 throw TypeError(".google.spanner.v1.ReadRequest.keySet: object expected");
-                            message.keySet = $root.google.spanner.v1.KeySet.fromObject(object.keySet);
+                            message.keySet = $root.google.spanner.v1.KeySet.fromObject(object.keySet, long + 1);
                         }
                         if (object.limit != null)
                             if ($util.Long)
@@ -84240,12 +87555,12 @@
                         if (object.requestOptions != null) {
                             if (typeof object.requestOptions !== "object")
                                 throw TypeError(".google.spanner.v1.ReadRequest.requestOptions: object expected");
-                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions);
+                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions, long + 1);
                         }
                         if (object.directedReadOptions != null) {
                             if (typeof object.directedReadOptions !== "object")
                                 throw TypeError(".google.spanner.v1.ReadRequest.directedReadOptions: object expected");
-                            message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.fromObject(object.directedReadOptions);
+                            message.directedReadOptions = $root.google.spanner.v1.DirectedReadOptions.fromObject(object.directedReadOptions, long + 1);
                         }
                         if (object.dataBoostEnabled != null)
                             message.dataBoostEnabled = Boolean(object.dataBoostEnabled);
@@ -84292,7 +87607,7 @@
                         if (object.routingHint != null) {
                             if (typeof object.routingHint !== "object")
                                 throw TypeError(".google.spanner.v1.ReadRequest.routingHint: object expected");
-                            message.routingHint = $root.google.spanner.v1.RoutingHint.fromObject(object.routingHint);
+                            message.routingHint = $root.google.spanner.v1.RoutingHint.fromObject(object.routingHint, long + 1);
                         }
                         return message;
                     };
@@ -84467,7 +87782,7 @@
                     function BeginTransactionRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -84562,9 +87877,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    BeginTransactionRequest.decode = function decode(reader, length, error) {
+                    BeginTransactionRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.BeginTransactionRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -84576,19 +87895,19 @@
                                     break;
                                 }
                             case 2: {
-                                    message.options = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32());
+                                    message.options = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32());
+                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
-                                    message.mutationKey = $root.google.spanner.v1.Mutation.decode(reader, reader.uint32());
+                                    message.mutationKey = $root.google.spanner.v1.Mutation.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -84619,24 +87938,28 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    BeginTransactionRequest.verify = function verify(message) {
+                    BeginTransactionRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
                         if (message.options != null && message.hasOwnProperty("options")) {
-                            var error = $root.google.spanner.v1.TransactionOptions.verify(message.options);
+                            var error = $root.google.spanner.v1.TransactionOptions.verify(message.options, long + 1);
                             if (error)
                                 return "options." + error;
                         }
                         if (message.requestOptions != null && message.hasOwnProperty("requestOptions")) {
-                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions);
+                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions, long + 1);
                             if (error)
                                 return "requestOptions." + error;
                         }
                         if (message.mutationKey != null && message.hasOwnProperty("mutationKey")) {
-                            var error = $root.google.spanner.v1.Mutation.verify(message.mutationKey);
+                            var error = $root.google.spanner.v1.Mutation.verify(message.mutationKey, long + 1);
                             if (error)
                                 return "mutationKey." + error;
                         }
@@ -84651,26 +87974,30 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.BeginTransactionRequest} BeginTransactionRequest
                      */
-                    BeginTransactionRequest.fromObject = function fromObject(object) {
+                    BeginTransactionRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.BeginTransactionRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.BeginTransactionRequest();
                         if (object.session != null)
                             message.session = String(object.session);
                         if (object.options != null) {
                             if (typeof object.options !== "object")
                                 throw TypeError(".google.spanner.v1.BeginTransactionRequest.options: object expected");
-                            message.options = $root.google.spanner.v1.TransactionOptions.fromObject(object.options);
+                            message.options = $root.google.spanner.v1.TransactionOptions.fromObject(object.options, long + 1);
                         }
                         if (object.requestOptions != null) {
                             if (typeof object.requestOptions !== "object")
                                 throw TypeError(".google.spanner.v1.BeginTransactionRequest.requestOptions: object expected");
-                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions);
+                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions, long + 1);
                         }
                         if (object.mutationKey != null) {
                             if (typeof object.mutationKey !== "object")
                                 throw TypeError(".google.spanner.v1.BeginTransactionRequest.mutationKey: object expected");
-                            message.mutationKey = $root.google.spanner.v1.Mutation.fromObject(object.mutationKey);
+                            message.mutationKey = $root.google.spanner.v1.Mutation.fromObject(object.mutationKey, long + 1);
                         }
                         return message;
                     };
@@ -84762,7 +88089,7 @@
                         this.mutations = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -84912,9 +88239,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    CommitRequest.decode = function decode(reader, length, error) {
+                    CommitRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.CommitRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -84930,13 +88261,13 @@
                                     break;
                                 }
                             case 3: {
-                                    message.singleUseTransaction = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32());
+                                    message.singleUseTransaction = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
                                     if (!(message.mutations && message.mutations.length))
                                         message.mutations = [];
-                                    message.mutations.push($root.google.spanner.v1.Mutation.decode(reader, reader.uint32()));
+                                    message.mutations.push($root.google.spanner.v1.Mutation.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 5: {
@@ -84944,19 +88275,19 @@
                                     break;
                                 }
                             case 8: {
-                                    message.maxCommitDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                    message.maxCommitDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 6: {
-                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32());
+                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 9: {
-                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32());
+                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -84987,9 +88318,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    CommitRequest.verify = function verify(message) {
+                    CommitRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
@@ -85004,7 +88339,7 @@
                                 return "transaction: multiple values";
                             properties.transaction = 1;
                             {
-                                var error = $root.google.spanner.v1.TransactionOptions.verify(message.singleUseTransaction);
+                                var error = $root.google.spanner.v1.TransactionOptions.verify(message.singleUseTransaction, long + 1);
                                 if (error)
                                     return "singleUseTransaction." + error;
                             }
@@ -85013,7 +88348,7 @@
                             if (!Array.isArray(message.mutations))
                                 return "mutations: array expected";
                             for (var i = 0; i < message.mutations.length; ++i) {
-                                var error = $root.google.spanner.v1.Mutation.verify(message.mutations[i]);
+                                var error = $root.google.spanner.v1.Mutation.verify(message.mutations[i], long + 1);
                                 if (error)
                                     return "mutations." + error;
                             }
@@ -85022,17 +88357,17 @@
                             if (typeof message.returnCommitStats !== "boolean")
                                 return "returnCommitStats: boolean expected";
                         if (message.maxCommitDelay != null && message.hasOwnProperty("maxCommitDelay")) {
-                            var error = $root.google.protobuf.Duration.verify(message.maxCommitDelay);
+                            var error = $root.google.protobuf.Duration.verify(message.maxCommitDelay, long + 1);
                             if (error)
                                 return "maxCommitDelay." + error;
                         }
                         if (message.requestOptions != null && message.hasOwnProperty("requestOptions")) {
-                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions);
+                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions, long + 1);
                             if (error)
                                 return "requestOptions." + error;
                         }
                         if (message.precommitToken != null && message.hasOwnProperty("precommitToken")) {
-                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken);
+                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken, long + 1);
                             if (error)
                                 return "precommitToken." + error;
                         }
@@ -85047,9 +88382,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.CommitRequest} CommitRequest
                      */
-                    CommitRequest.fromObject = function fromObject(object) {
+                    CommitRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.CommitRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.CommitRequest();
                         if (object.session != null)
                             message.session = String(object.session);
@@ -85061,7 +88400,7 @@
                         if (object.singleUseTransaction != null) {
                             if (typeof object.singleUseTransaction !== "object")
                                 throw TypeError(".google.spanner.v1.CommitRequest.singleUseTransaction: object expected");
-                            message.singleUseTransaction = $root.google.spanner.v1.TransactionOptions.fromObject(object.singleUseTransaction);
+                            message.singleUseTransaction = $root.google.spanner.v1.TransactionOptions.fromObject(object.singleUseTransaction, long + 1);
                         }
                         if (object.mutations) {
                             if (!Array.isArray(object.mutations))
@@ -85070,7 +88409,7 @@
                             for (var i = 0; i < object.mutations.length; ++i) {
                                 if (typeof object.mutations[i] !== "object")
                                     throw TypeError(".google.spanner.v1.CommitRequest.mutations: object expected");
-                                message.mutations[i] = $root.google.spanner.v1.Mutation.fromObject(object.mutations[i]);
+                                message.mutations[i] = $root.google.spanner.v1.Mutation.fromObject(object.mutations[i], long + 1);
                             }
                         }
                         if (object.returnCommitStats != null)
@@ -85078,17 +88417,17 @@
                         if (object.maxCommitDelay != null) {
                             if (typeof object.maxCommitDelay !== "object")
                                 throw TypeError(".google.spanner.v1.CommitRequest.maxCommitDelay: object expected");
-                            message.maxCommitDelay = $root.google.protobuf.Duration.fromObject(object.maxCommitDelay);
+                            message.maxCommitDelay = $root.google.protobuf.Duration.fromObject(object.maxCommitDelay, long + 1);
                         }
                         if (object.requestOptions != null) {
                             if (typeof object.requestOptions !== "object")
                                 throw TypeError(".google.spanner.v1.CommitRequest.requestOptions: object expected");
-                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions);
+                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions, long + 1);
                         }
                         if (object.precommitToken != null) {
                             if (typeof object.precommitToken !== "object")
                                 throw TypeError(".google.spanner.v1.CommitRequest.precommitToken: object expected");
-                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken);
+                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken, long + 1);
                         }
                         return message;
                     };
@@ -85193,7 +88532,7 @@
                     function RollbackRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -85268,9 +88607,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    RollbackRequest.decode = function decode(reader, length, error) {
+                    RollbackRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.RollbackRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -85286,7 +88629,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -85317,9 +88660,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    RollbackRequest.verify = function verify(message) {
+                    RollbackRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
@@ -85337,9 +88684,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.RollbackRequest} RollbackRequest
                      */
-                    RollbackRequest.fromObject = function fromObject(object) {
+                    RollbackRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.RollbackRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.RollbackRequest();
                         if (object.session != null)
                             message.session = String(object.session);
@@ -85434,7 +88785,7 @@
                         this.mutationGroups = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -85530,9 +88881,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    BatchWriteRequest.decode = function decode(reader, length, error) {
+                    BatchWriteRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.BatchWriteRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -85544,13 +88899,13 @@
                                     break;
                                 }
                             case 3: {
-                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32());
+                                    message.requestOptions = $root.google.spanner.v1.RequestOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
                                     if (!(message.mutationGroups && message.mutationGroups.length))
                                         message.mutationGroups = [];
-                                    message.mutationGroups.push($root.google.spanner.v1.BatchWriteRequest.MutationGroup.decode(reader, reader.uint32()));
+                                    message.mutationGroups.push($root.google.spanner.v1.BatchWriteRequest.MutationGroup.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 5: {
@@ -85558,7 +88913,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -85589,14 +88944,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    BatchWriteRequest.verify = function verify(message) {
+                    BatchWriteRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.session != null && message.hasOwnProperty("session"))
                             if (!$util.isString(message.session))
                                 return "session: string expected";
                         if (message.requestOptions != null && message.hasOwnProperty("requestOptions")) {
-                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions);
+                            var error = $root.google.spanner.v1.RequestOptions.verify(message.requestOptions, long + 1);
                             if (error)
                                 return "requestOptions." + error;
                         }
@@ -85604,7 +88963,7 @@
                             if (!Array.isArray(message.mutationGroups))
                                 return "mutationGroups: array expected";
                             for (var i = 0; i < message.mutationGroups.length; ++i) {
-                                var error = $root.google.spanner.v1.BatchWriteRequest.MutationGroup.verify(message.mutationGroups[i]);
+                                var error = $root.google.spanner.v1.BatchWriteRequest.MutationGroup.verify(message.mutationGroups[i], long + 1);
                                 if (error)
                                     return "mutationGroups." + error;
                             }
@@ -85623,16 +88982,20 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.BatchWriteRequest} BatchWriteRequest
                      */
-                    BatchWriteRequest.fromObject = function fromObject(object) {
+                    BatchWriteRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.BatchWriteRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.BatchWriteRequest();
                         if (object.session != null)
                             message.session = String(object.session);
                         if (object.requestOptions != null) {
                             if (typeof object.requestOptions !== "object")
                                 throw TypeError(".google.spanner.v1.BatchWriteRequest.requestOptions: object expected");
-                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions);
+                            message.requestOptions = $root.google.spanner.v1.RequestOptions.fromObject(object.requestOptions, long + 1);
                         }
                         if (object.mutationGroups) {
                             if (!Array.isArray(object.mutationGroups))
@@ -85641,7 +89004,7 @@
                             for (var i = 0; i < object.mutationGroups.length; ++i) {
                                 if (typeof object.mutationGroups[i] !== "object")
                                     throw TypeError(".google.spanner.v1.BatchWriteRequest.mutationGroups: object expected");
-                                message.mutationGroups[i] = $root.google.spanner.v1.BatchWriteRequest.MutationGroup.fromObject(object.mutationGroups[i]);
+                                message.mutationGroups[i] = $root.google.spanner.v1.BatchWriteRequest.MutationGroup.fromObject(object.mutationGroups[i], long + 1);
                             }
                         }
                         if (object.excludeTxnFromChangeStreams != null)
@@ -85730,7 +89093,7 @@
                             this.mutations = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -85796,9 +89159,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        MutationGroup.decode = function decode(reader, length, error) {
+                        MutationGroup.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.BatchWriteRequest.MutationGroup();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -85808,11 +89175,11 @@
                                 case 1: {
                                         if (!(message.mutations && message.mutations.length))
                                             message.mutations = [];
-                                        message.mutations.push($root.google.spanner.v1.Mutation.decode(reader, reader.uint32()));
+                                        message.mutations.push($root.google.spanner.v1.Mutation.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -85843,14 +89210,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        MutationGroup.verify = function verify(message) {
+                        MutationGroup.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.mutations != null && message.hasOwnProperty("mutations")) {
                                 if (!Array.isArray(message.mutations))
                                     return "mutations: array expected";
                                 for (var i = 0; i < message.mutations.length; ++i) {
-                                    var error = $root.google.spanner.v1.Mutation.verify(message.mutations[i]);
+                                    var error = $root.google.spanner.v1.Mutation.verify(message.mutations[i], long + 1);
                                     if (error)
                                         return "mutations." + error;
                                 }
@@ -85866,9 +89237,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.BatchWriteRequest.MutationGroup} MutationGroup
                          */
-                        MutationGroup.fromObject = function fromObject(object) {
+                        MutationGroup.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.BatchWriteRequest.MutationGroup)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.BatchWriteRequest.MutationGroup();
                             if (object.mutations) {
                                 if (!Array.isArray(object.mutations))
@@ -85877,7 +89252,7 @@
                                 for (var i = 0; i < object.mutations.length; ++i) {
                                     if (typeof object.mutations[i] !== "object")
                                         throw TypeError(".google.spanner.v1.BatchWriteRequest.MutationGroup.mutations: object expected");
-                                    message.mutations[i] = $root.google.spanner.v1.Mutation.fromObject(object.mutations[i]);
+                                    message.mutations[i] = $root.google.spanner.v1.Mutation.fromObject(object.mutations[i], long + 1);
                                 }
                             }
                             return message;
@@ -85961,7 +89336,7 @@
                         this.indexes = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -86050,9 +89425,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    BatchWriteResponse.decode = function decode(reader, length, error) {
+                    BatchWriteResponse.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.BatchWriteResponse();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -86071,15 +89450,15 @@
                                     break;
                                 }
                             case 2: {
-                                    message.status = $root.google.rpc.Status.decode(reader, reader.uint32());
+                                    message.status = $root.google.rpc.Status.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -86110,9 +89489,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    BatchWriteResponse.verify = function verify(message) {
+                    BatchWriteResponse.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.indexes != null && message.hasOwnProperty("indexes")) {
                             if (!Array.isArray(message.indexes))
                                 return "indexes: array expected";
@@ -86121,12 +89504,12 @@
                                     return "indexes: integer[] expected";
                         }
                         if (message.status != null && message.hasOwnProperty("status")) {
-                            var error = $root.google.rpc.Status.verify(message.status);
+                            var error = $root.google.rpc.Status.verify(message.status, long + 1);
                             if (error)
                                 return "status." + error;
                         }
                         if (message.commitTimestamp != null && message.hasOwnProperty("commitTimestamp")) {
-                            var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp);
+                            var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp, long + 1);
                             if (error)
                                 return "commitTimestamp." + error;
                         }
@@ -86141,9 +89524,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.BatchWriteResponse} BatchWriteResponse
                      */
-                    BatchWriteResponse.fromObject = function fromObject(object) {
+                    BatchWriteResponse.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.BatchWriteResponse)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.BatchWriteResponse();
                         if (object.indexes) {
                             if (!Array.isArray(object.indexes))
@@ -86155,12 +89542,12 @@
                         if (object.status != null) {
                             if (typeof object.status !== "object")
                                 throw TypeError(".google.spanner.v1.BatchWriteResponse.status: object expected");
-                            message.status = $root.google.rpc.Status.fromObject(object.status);
+                            message.status = $root.google.rpc.Status.fromObject(object.status, long + 1);
                         }
                         if (object.commitTimestamp != null) {
                             if (typeof object.commitTimestamp !== "object")
                                 throw TypeError(".google.spanner.v1.BatchWriteResponse.commitTimestamp: object expected");
-                            message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp);
+                            message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp, long + 1);
                         }
                         return message;
                     };
@@ -86248,7 +89635,7 @@
                     function CommitResponse(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -86357,9 +89744,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    CommitResponse.decode = function decode(reader, length, error) {
+                    CommitResponse.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.CommitResponse();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -86367,23 +89758,23 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.commitStats = $root.google.spanner.v1.CommitResponse.CommitStats.decode(reader, reader.uint32());
+                                    message.commitStats = $root.google.spanner.v1.CommitResponse.CommitStats.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
-                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32());
+                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
-                                    message.snapshotTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    message.snapshotTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -86414,30 +89805,34 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    CommitResponse.verify = function verify(message) {
+                    CommitResponse.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.commitTimestamp != null && message.hasOwnProperty("commitTimestamp")) {
-                            var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp);
+                            var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp, long + 1);
                             if (error)
                                 return "commitTimestamp." + error;
                         }
                         if (message.commitStats != null && message.hasOwnProperty("commitStats")) {
-                            var error = $root.google.spanner.v1.CommitResponse.CommitStats.verify(message.commitStats);
+                            var error = $root.google.spanner.v1.CommitResponse.CommitStats.verify(message.commitStats, long + 1);
                             if (error)
                                 return "commitStats." + error;
                         }
                         if (message.precommitToken != null && message.hasOwnProperty("precommitToken")) {
                             properties.MultiplexedSessionRetry = 1;
                             {
-                                var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken);
+                                var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken, long + 1);
                                 if (error)
                                     return "precommitToken." + error;
                             }
                         }
                         if (message.snapshotTimestamp != null && message.hasOwnProperty("snapshotTimestamp")) {
-                            var error = $root.google.protobuf.Timestamp.verify(message.snapshotTimestamp);
+                            var error = $root.google.protobuf.Timestamp.verify(message.snapshotTimestamp, long + 1);
                             if (error)
                                 return "snapshotTimestamp." + error;
                         }
@@ -86452,29 +89847,33 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.CommitResponse} CommitResponse
                      */
-                    CommitResponse.fromObject = function fromObject(object) {
+                    CommitResponse.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.CommitResponse)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.CommitResponse();
                         if (object.commitTimestamp != null) {
                             if (typeof object.commitTimestamp !== "object")
                                 throw TypeError(".google.spanner.v1.CommitResponse.commitTimestamp: object expected");
-                            message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp);
+                            message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp, long + 1);
                         }
                         if (object.commitStats != null) {
                             if (typeof object.commitStats !== "object")
                                 throw TypeError(".google.spanner.v1.CommitResponse.commitStats: object expected");
-                            message.commitStats = $root.google.spanner.v1.CommitResponse.CommitStats.fromObject(object.commitStats);
+                            message.commitStats = $root.google.spanner.v1.CommitResponse.CommitStats.fromObject(object.commitStats, long + 1);
                         }
                         if (object.precommitToken != null) {
                             if (typeof object.precommitToken !== "object")
                                 throw TypeError(".google.spanner.v1.CommitResponse.precommitToken: object expected");
-                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken);
+                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken, long + 1);
                         }
                         if (object.snapshotTimestamp != null) {
                             if (typeof object.snapshotTimestamp !== "object")
                                 throw TypeError(".google.spanner.v1.CommitResponse.snapshotTimestamp: object expected");
-                            message.snapshotTimestamp = $root.google.protobuf.Timestamp.fromObject(object.snapshotTimestamp);
+                            message.snapshotTimestamp = $root.google.protobuf.Timestamp.fromObject(object.snapshotTimestamp, long + 1);
                         }
                         return message;
                     };
@@ -86557,7 +89956,7 @@
                         function CommitStats(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -86622,9 +90021,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        CommitStats.decode = function decode(reader, length, error) {
+                        CommitStats.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.CommitResponse.CommitStats();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -86636,7 +90039,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -86667,9 +90070,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        CommitStats.verify = function verify(message) {
+                        CommitStats.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.mutationCount != null && message.hasOwnProperty("mutationCount"))
                                 if (!$util.isInteger(message.mutationCount) && !(message.mutationCount && $util.isInteger(message.mutationCount.low) && $util.isInteger(message.mutationCount.high)))
                                     return "mutationCount: integer|Long expected";
@@ -86684,9 +90091,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.CommitResponse.CommitStats} CommitStats
                          */
-                        CommitStats.fromObject = function fromObject(object) {
+                        CommitStats.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.CommitResponse.CommitStats)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.CommitResponse.CommitStats();
                             if (object.mutationCount != null)
                                 if ($util.Long)
@@ -86783,7 +90194,7 @@
                     function TransactionOptions(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -86902,9 +90313,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    TransactionOptions.decode = function decode(reader, length, error) {
+                    TransactionOptions.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.TransactionOptions();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -86912,15 +90327,15 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.readWrite = $root.google.spanner.v1.TransactionOptions.ReadWrite.decode(reader, reader.uint32());
+                                    message.readWrite = $root.google.spanner.v1.TransactionOptions.ReadWrite.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.partitionedDml = $root.google.spanner.v1.TransactionOptions.PartitionedDml.decode(reader, reader.uint32());
+                                    message.partitionedDml = $root.google.spanner.v1.TransactionOptions.PartitionedDml.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.readOnly = $root.google.spanner.v1.TransactionOptions.ReadOnly.decode(reader, reader.uint32());
+                                    message.readOnly = $root.google.spanner.v1.TransactionOptions.ReadOnly.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
@@ -86932,7 +90347,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -86963,14 +90378,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    TransactionOptions.verify = function verify(message) {
+                    TransactionOptions.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.readWrite != null && message.hasOwnProperty("readWrite")) {
                             properties.mode = 1;
                             {
-                                var error = $root.google.spanner.v1.TransactionOptions.ReadWrite.verify(message.readWrite);
+                                var error = $root.google.spanner.v1.TransactionOptions.ReadWrite.verify(message.readWrite, long + 1);
                                 if (error)
                                     return "readWrite." + error;
                             }
@@ -86980,7 +90399,7 @@
                                 return "mode: multiple values";
                             properties.mode = 1;
                             {
-                                var error = $root.google.spanner.v1.TransactionOptions.PartitionedDml.verify(message.partitionedDml);
+                                var error = $root.google.spanner.v1.TransactionOptions.PartitionedDml.verify(message.partitionedDml, long + 1);
                                 if (error)
                                     return "partitionedDml." + error;
                             }
@@ -86990,7 +90409,7 @@
                                 return "mode: multiple values";
                             properties.mode = 1;
                             {
-                                var error = $root.google.spanner.v1.TransactionOptions.ReadOnly.verify(message.readOnly);
+                                var error = $root.google.spanner.v1.TransactionOptions.ReadOnly.verify(message.readOnly, long + 1);
                                 if (error)
                                     return "readOnly." + error;
                             }
@@ -87018,24 +90437,28 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.TransactionOptions} TransactionOptions
                      */
-                    TransactionOptions.fromObject = function fromObject(object) {
+                    TransactionOptions.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.TransactionOptions)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.TransactionOptions();
                         if (object.readWrite != null) {
                             if (typeof object.readWrite !== "object")
                                 throw TypeError(".google.spanner.v1.TransactionOptions.readWrite: object expected");
-                            message.readWrite = $root.google.spanner.v1.TransactionOptions.ReadWrite.fromObject(object.readWrite);
+                            message.readWrite = $root.google.spanner.v1.TransactionOptions.ReadWrite.fromObject(object.readWrite, long + 1);
                         }
                         if (object.partitionedDml != null) {
                             if (typeof object.partitionedDml !== "object")
                                 throw TypeError(".google.spanner.v1.TransactionOptions.partitionedDml: object expected");
-                            message.partitionedDml = $root.google.spanner.v1.TransactionOptions.PartitionedDml.fromObject(object.partitionedDml);
+                            message.partitionedDml = $root.google.spanner.v1.TransactionOptions.PartitionedDml.fromObject(object.partitionedDml, long + 1);
                         }
                         if (object.readOnly != null) {
                             if (typeof object.readOnly !== "object")
                                 throw TypeError(".google.spanner.v1.TransactionOptions.readOnly: object expected");
-                            message.readOnly = $root.google.spanner.v1.TransactionOptions.ReadOnly.fromObject(object.readOnly);
+                            message.readOnly = $root.google.spanner.v1.TransactionOptions.ReadOnly.fromObject(object.readOnly, long + 1);
                         }
                         if (object.excludeTxnFromChangeStreams != null)
                             message.excludeTxnFromChangeStreams = Boolean(object.excludeTxnFromChangeStreams);
@@ -87148,7 +90571,7 @@
                         function ReadWrite(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -87223,9 +90646,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ReadWrite.decode = function decode(reader, length, error) {
+                        ReadWrite.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.TransactionOptions.ReadWrite();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -87241,7 +90668,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -87272,9 +90699,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ReadWrite.verify = function verify(message) {
+                        ReadWrite.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.readLockMode != null && message.hasOwnProperty("readLockMode"))
                                 switch (message.readLockMode) {
                                 default:
@@ -87298,9 +90729,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.TransactionOptions.ReadWrite} ReadWrite
                          */
-                        ReadWrite.fromObject = function fromObject(object) {
+                        ReadWrite.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.TransactionOptions.ReadWrite)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.TransactionOptions.ReadWrite();
                             switch (object.readLockMode) {
                             default:
@@ -87424,7 +90859,7 @@
                         function PartitionedDml(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -87479,9 +90914,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        PartitionedDml.decode = function decode(reader, length, error) {
+                        PartitionedDml.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.TransactionOptions.PartitionedDml();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -87489,7 +90928,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -87520,9 +90959,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        PartitionedDml.verify = function verify(message) {
+                        PartitionedDml.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             return null;
                         };
     
@@ -87534,9 +90977,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.TransactionOptions.PartitionedDml} PartitionedDml
                          */
-                        PartitionedDml.fromObject = function fromObject(object) {
+                        PartitionedDml.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.TransactionOptions.PartitionedDml)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             return new $root.google.spanner.v1.TransactionOptions.PartitionedDml();
                         };
     
@@ -87607,7 +91054,7 @@
                         function ReadOnly(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -87736,9 +91183,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ReadOnly.decode = function decode(reader, length, error) {
+                        ReadOnly.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.TransactionOptions.ReadOnly();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -87750,19 +91201,19 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.minReadTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.minReadTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
-                                        message.maxStaleness = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                        message.maxStaleness = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 4: {
-                                        message.readTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.readTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 5: {
-                                        message.exactStaleness = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                        message.exactStaleness = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 6: {
@@ -87770,7 +91221,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -87801,9 +91252,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ReadOnly.verify = function verify(message) {
+                        ReadOnly.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.strong != null && message.hasOwnProperty("strong")) {
                                 properties.timestampBound = 1;
@@ -87815,7 +91270,7 @@
                                     return "timestampBound: multiple values";
                                 properties.timestampBound = 1;
                                 {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.minReadTimestamp);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.minReadTimestamp, long + 1);
                                     if (error)
                                         return "minReadTimestamp." + error;
                                 }
@@ -87825,7 +91280,7 @@
                                     return "timestampBound: multiple values";
                                 properties.timestampBound = 1;
                                 {
-                                    var error = $root.google.protobuf.Duration.verify(message.maxStaleness);
+                                    var error = $root.google.protobuf.Duration.verify(message.maxStaleness, long + 1);
                                     if (error)
                                         return "maxStaleness." + error;
                                 }
@@ -87835,7 +91290,7 @@
                                     return "timestampBound: multiple values";
                                 properties.timestampBound = 1;
                                 {
-                                    var error = $root.google.protobuf.Timestamp.verify(message.readTimestamp);
+                                    var error = $root.google.protobuf.Timestamp.verify(message.readTimestamp, long + 1);
                                     if (error)
                                         return "readTimestamp." + error;
                                 }
@@ -87845,7 +91300,7 @@
                                     return "timestampBound: multiple values";
                                 properties.timestampBound = 1;
                                 {
-                                    var error = $root.google.protobuf.Duration.verify(message.exactStaleness);
+                                    var error = $root.google.protobuf.Duration.verify(message.exactStaleness, long + 1);
                                     if (error)
                                         return "exactStaleness." + error;
                                 }
@@ -87864,31 +91319,35 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.TransactionOptions.ReadOnly} ReadOnly
                          */
-                        ReadOnly.fromObject = function fromObject(object) {
+                        ReadOnly.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.TransactionOptions.ReadOnly)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.TransactionOptions.ReadOnly();
                             if (object.strong != null)
                                 message.strong = Boolean(object.strong);
                             if (object.minReadTimestamp != null) {
                                 if (typeof object.minReadTimestamp !== "object")
                                     throw TypeError(".google.spanner.v1.TransactionOptions.ReadOnly.minReadTimestamp: object expected");
-                                message.minReadTimestamp = $root.google.protobuf.Timestamp.fromObject(object.minReadTimestamp);
+                                message.minReadTimestamp = $root.google.protobuf.Timestamp.fromObject(object.minReadTimestamp, long + 1);
                             }
                             if (object.maxStaleness != null) {
                                 if (typeof object.maxStaleness !== "object")
                                     throw TypeError(".google.spanner.v1.TransactionOptions.ReadOnly.maxStaleness: object expected");
-                                message.maxStaleness = $root.google.protobuf.Duration.fromObject(object.maxStaleness);
+                                message.maxStaleness = $root.google.protobuf.Duration.fromObject(object.maxStaleness, long + 1);
                             }
                             if (object.readTimestamp != null) {
                                 if (typeof object.readTimestamp !== "object")
                                     throw TypeError(".google.spanner.v1.TransactionOptions.ReadOnly.readTimestamp: object expected");
-                                message.readTimestamp = $root.google.protobuf.Timestamp.fromObject(object.readTimestamp);
+                                message.readTimestamp = $root.google.protobuf.Timestamp.fromObject(object.readTimestamp, long + 1);
                             }
                             if (object.exactStaleness != null) {
                                 if (typeof object.exactStaleness !== "object")
                                     throw TypeError(".google.spanner.v1.TransactionOptions.ReadOnly.exactStaleness: object expected");
-                                message.exactStaleness = $root.google.protobuf.Duration.fromObject(object.exactStaleness);
+                                message.exactStaleness = $root.google.protobuf.Duration.fromObject(object.exactStaleness, long + 1);
                             }
                             if (object.returnReadTimestamp != null)
                                 message.returnReadTimestamp = Boolean(object.returnReadTimestamp);
@@ -88010,7 +91469,7 @@
                     function Transaction(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -88095,9 +91554,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Transaction.decode = function decode(reader, length, error) {
+                    Transaction.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Transaction();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -88109,15 +91572,15 @@
                                     break;
                                 }
                             case 2: {
-                                    message.readTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    message.readTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32());
+                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -88148,19 +91611,23 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Transaction.verify = function verify(message) {
+                    Transaction.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.id != null && message.hasOwnProperty("id"))
                             if (!(message.id && typeof message.id.length === "number" || $util.isString(message.id)))
                                 return "id: buffer expected";
                         if (message.readTimestamp != null && message.hasOwnProperty("readTimestamp")) {
-                            var error = $root.google.protobuf.Timestamp.verify(message.readTimestamp);
+                            var error = $root.google.protobuf.Timestamp.verify(message.readTimestamp, long + 1);
                             if (error)
                                 return "readTimestamp." + error;
                         }
                         if (message.precommitToken != null && message.hasOwnProperty("precommitToken")) {
-                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken);
+                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken, long + 1);
                             if (error)
                                 return "precommitToken." + error;
                         }
@@ -88175,9 +91642,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Transaction} Transaction
                      */
-                    Transaction.fromObject = function fromObject(object) {
+                    Transaction.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Transaction)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Transaction();
                         if (object.id != null)
                             if (typeof object.id === "string")
@@ -88187,12 +91658,12 @@
                         if (object.readTimestamp != null) {
                             if (typeof object.readTimestamp !== "object")
                                 throw TypeError(".google.spanner.v1.Transaction.readTimestamp: object expected");
-                            message.readTimestamp = $root.google.protobuf.Timestamp.fromObject(object.readTimestamp);
+                            message.readTimestamp = $root.google.protobuf.Timestamp.fromObject(object.readTimestamp, long + 1);
                         }
                         if (object.precommitToken != null) {
                             if (typeof object.precommitToken !== "object")
                                 throw TypeError(".google.spanner.v1.Transaction.precommitToken: object expected");
-                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken);
+                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken, long + 1);
                         }
                         return message;
                     };
@@ -88281,7 +91752,7 @@
                     function TransactionSelector(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -88380,9 +91851,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    TransactionSelector.decode = function decode(reader, length, error) {
+                    TransactionSelector.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.TransactionSelector();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -88390,7 +91865,7 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.singleUse = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32());
+                                    message.singleUse = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
@@ -88398,11 +91873,11 @@
                                     break;
                                 }
                             case 3: {
-                                    message.begin = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32());
+                                    message.begin = $root.google.spanner.v1.TransactionOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -88433,14 +91908,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    TransactionSelector.verify = function verify(message) {
+                    TransactionSelector.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.singleUse != null && message.hasOwnProperty("singleUse")) {
                             properties.selector = 1;
                             {
-                                var error = $root.google.spanner.v1.TransactionOptions.verify(message.singleUse);
+                                var error = $root.google.spanner.v1.TransactionOptions.verify(message.singleUse, long + 1);
                                 if (error)
                                     return "singleUse." + error;
                             }
@@ -88457,7 +91936,7 @@
                                 return "selector: multiple values";
                             properties.selector = 1;
                             {
-                                var error = $root.google.spanner.v1.TransactionOptions.verify(message.begin);
+                                var error = $root.google.spanner.v1.TransactionOptions.verify(message.begin, long + 1);
                                 if (error)
                                     return "begin." + error;
                             }
@@ -88473,14 +91952,18 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.TransactionSelector} TransactionSelector
                      */
-                    TransactionSelector.fromObject = function fromObject(object) {
+                    TransactionSelector.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.TransactionSelector)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.TransactionSelector();
                         if (object.singleUse != null) {
                             if (typeof object.singleUse !== "object")
                                 throw TypeError(".google.spanner.v1.TransactionSelector.singleUse: object expected");
-                            message.singleUse = $root.google.spanner.v1.TransactionOptions.fromObject(object.singleUse);
+                            message.singleUse = $root.google.spanner.v1.TransactionOptions.fromObject(object.singleUse, long + 1);
                         }
                         if (object.id != null)
                             if (typeof object.id === "string")
@@ -88490,7 +91973,7 @@
                         if (object.begin != null) {
                             if (typeof object.begin !== "object")
                                 throw TypeError(".google.spanner.v1.TransactionSelector.begin: object expected");
-                            message.begin = $root.google.spanner.v1.TransactionOptions.fromObject(object.begin);
+                            message.begin = $root.google.spanner.v1.TransactionOptions.fromObject(object.begin, long + 1);
                         }
                         return message;
                     };
@@ -88576,7 +92059,7 @@
                     function MultiplexedSessionPrecommitToken(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -88651,9 +92134,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    MultiplexedSessionPrecommitToken.decode = function decode(reader, length, error) {
+                    MultiplexedSessionPrecommitToken.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.MultiplexedSessionPrecommitToken();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -88669,7 +92156,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -88700,9 +92187,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    MultiplexedSessionPrecommitToken.verify = function verify(message) {
+                    MultiplexedSessionPrecommitToken.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.precommitToken != null && message.hasOwnProperty("precommitToken"))
                             if (!(message.precommitToken && typeof message.precommitToken.length === "number" || $util.isString(message.precommitToken)))
                                 return "precommitToken: buffer expected";
@@ -88720,9 +92211,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.MultiplexedSessionPrecommitToken} MultiplexedSessionPrecommitToken
                      */
-                    MultiplexedSessionPrecommitToken.fromObject = function fromObject(object) {
+                    MultiplexedSessionPrecommitToken.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.MultiplexedSessionPrecommitToken)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.MultiplexedSessionPrecommitToken();
                         if (object.precommitToken != null)
                             if (typeof object.precommitToken === "string")
@@ -88816,7 +92311,7 @@
                     function KeyRange(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -88936,9 +92431,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    KeyRange.decode = function decode(reader, length, error) {
+                    KeyRange.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.KeyRange();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -88946,23 +92445,23 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.startClosed = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                    message.startClosed = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.startOpen = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                    message.startOpen = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.endClosed = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                    message.endClosed = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
-                                    message.endOpen = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                    message.endOpen = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -88993,14 +92492,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    KeyRange.verify = function verify(message) {
+                    KeyRange.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.startClosed != null && message.hasOwnProperty("startClosed")) {
                             properties.startKeyType = 1;
                             {
-                                var error = $root.google.protobuf.ListValue.verify(message.startClosed);
+                                var error = $root.google.protobuf.ListValue.verify(message.startClosed, long + 1);
                                 if (error)
                                     return "startClosed." + error;
                             }
@@ -89010,7 +92513,7 @@
                                 return "startKeyType: multiple values";
                             properties.startKeyType = 1;
                             {
-                                var error = $root.google.protobuf.ListValue.verify(message.startOpen);
+                                var error = $root.google.protobuf.ListValue.verify(message.startOpen, long + 1);
                                 if (error)
                                     return "startOpen." + error;
                             }
@@ -89018,7 +92521,7 @@
                         if (message.endClosed != null && message.hasOwnProperty("endClosed")) {
                             properties.endKeyType = 1;
                             {
-                                var error = $root.google.protobuf.ListValue.verify(message.endClosed);
+                                var error = $root.google.protobuf.ListValue.verify(message.endClosed, long + 1);
                                 if (error)
                                     return "endClosed." + error;
                             }
@@ -89028,7 +92531,7 @@
                                 return "endKeyType: multiple values";
                             properties.endKeyType = 1;
                             {
-                                var error = $root.google.protobuf.ListValue.verify(message.endOpen);
+                                var error = $root.google.protobuf.ListValue.verify(message.endOpen, long + 1);
                                 if (error)
                                     return "endOpen." + error;
                             }
@@ -89044,29 +92547,33 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.KeyRange} KeyRange
                      */
-                    KeyRange.fromObject = function fromObject(object) {
+                    KeyRange.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.KeyRange)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.KeyRange();
                         if (object.startClosed != null) {
                             if (typeof object.startClosed !== "object")
                                 throw TypeError(".google.spanner.v1.KeyRange.startClosed: object expected");
-                            message.startClosed = $root.google.protobuf.ListValue.fromObject(object.startClosed);
+                            message.startClosed = $root.google.protobuf.ListValue.fromObject(object.startClosed, long + 1);
                         }
                         if (object.startOpen != null) {
                             if (typeof object.startOpen !== "object")
                                 throw TypeError(".google.spanner.v1.KeyRange.startOpen: object expected");
-                            message.startOpen = $root.google.protobuf.ListValue.fromObject(object.startOpen);
+                            message.startOpen = $root.google.protobuf.ListValue.fromObject(object.startOpen, long + 1);
                         }
                         if (object.endClosed != null) {
                             if (typeof object.endClosed !== "object")
                                 throw TypeError(".google.spanner.v1.KeyRange.endClosed: object expected");
-                            message.endClosed = $root.google.protobuf.ListValue.fromObject(object.endClosed);
+                            message.endClosed = $root.google.protobuf.ListValue.fromObject(object.endClosed, long + 1);
                         }
                         if (object.endOpen != null) {
                             if (typeof object.endOpen !== "object")
                                 throw TypeError(".google.spanner.v1.KeyRange.endOpen: object expected");
-                            message.endOpen = $root.google.protobuf.ListValue.fromObject(object.endOpen);
+                            message.endOpen = $root.google.protobuf.ListValue.fromObject(object.endOpen, long + 1);
                         }
                         return message;
                     };
@@ -89160,7 +92667,7 @@
                         this.ranges = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -89247,9 +92754,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    KeySet.decode = function decode(reader, length, error) {
+                    KeySet.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.KeySet();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -89259,13 +92770,13 @@
                             case 1: {
                                     if (!(message.keys && message.keys.length))
                                         message.keys = [];
-                                    message.keys.push($root.google.protobuf.ListValue.decode(reader, reader.uint32()));
+                                    message.keys.push($root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 2: {
                                     if (!(message.ranges && message.ranges.length))
                                         message.ranges = [];
-                                    message.ranges.push($root.google.spanner.v1.KeyRange.decode(reader, reader.uint32()));
+                                    message.ranges.push($root.google.spanner.v1.KeyRange.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 3: {
@@ -89273,7 +92784,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -89304,14 +92815,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    KeySet.verify = function verify(message) {
+                    KeySet.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.keys != null && message.hasOwnProperty("keys")) {
                             if (!Array.isArray(message.keys))
                                 return "keys: array expected";
                             for (var i = 0; i < message.keys.length; ++i) {
-                                var error = $root.google.protobuf.ListValue.verify(message.keys[i]);
+                                var error = $root.google.protobuf.ListValue.verify(message.keys[i], long + 1);
                                 if (error)
                                     return "keys." + error;
                             }
@@ -89320,7 +92835,7 @@
                             if (!Array.isArray(message.ranges))
                                 return "ranges: array expected";
                             for (var i = 0; i < message.ranges.length; ++i) {
-                                var error = $root.google.spanner.v1.KeyRange.verify(message.ranges[i]);
+                                var error = $root.google.spanner.v1.KeyRange.verify(message.ranges[i], long + 1);
                                 if (error)
                                     return "ranges." + error;
                             }
@@ -89339,9 +92854,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.KeySet} KeySet
                      */
-                    KeySet.fromObject = function fromObject(object) {
+                    KeySet.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.KeySet)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.KeySet();
                         if (object.keys) {
                             if (!Array.isArray(object.keys))
@@ -89350,7 +92869,7 @@
                             for (var i = 0; i < object.keys.length; ++i) {
                                 if (typeof object.keys[i] !== "object")
                                     throw TypeError(".google.spanner.v1.KeySet.keys: object expected");
-                                message.keys[i] = $root.google.protobuf.ListValue.fromObject(object.keys[i]);
+                                message.keys[i] = $root.google.protobuf.ListValue.fromObject(object.keys[i], long + 1);
                             }
                         }
                         if (object.ranges) {
@@ -89360,7 +92879,7 @@
                             for (var i = 0; i < object.ranges.length; ++i) {
                                 if (typeof object.ranges[i] !== "object")
                                     throw TypeError(".google.spanner.v1.KeySet.ranges: object expected");
-                                message.ranges[i] = $root.google.spanner.v1.KeyRange.fromObject(object.ranges[i]);
+                                message.ranges[i] = $root.google.spanner.v1.KeyRange.fromObject(object.ranges[i], long + 1);
                             }
                         }
                         if (object.all != null)
@@ -89455,7 +92974,7 @@
                     function Range(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -89560,9 +93079,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Range.decode = function decode(reader, length, error) {
+                    Range.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Range();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -89590,7 +93113,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -89621,9 +93144,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Range.verify = function verify(message) {
+                    Range.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.startKey != null && message.hasOwnProperty("startKey"))
                             if (!(message.startKey && typeof message.startKey.length === "number" || $util.isString(message.startKey)))
                                 return "startKey: buffer expected";
@@ -89650,9 +93177,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Range} Range
                      */
-                    Range.fromObject = function fromObject(object) {
+                    Range.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Range)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Range();
                         if (object.startKey != null)
                             if (typeof object.startKey === "string")
@@ -89810,7 +93341,7 @@
                     function Tablet(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -89935,9 +93466,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Tablet.decode = function decode(reader, length, error) {
+                    Tablet.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Tablet();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -89973,7 +93508,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -90004,9 +93539,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Tablet.verify = function verify(message) {
+                    Tablet.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.tabletUid != null && message.hasOwnProperty("tabletUid"))
                             if (!$util.isInteger(message.tabletUid) && !(message.tabletUid && $util.isInteger(message.tabletUid.low) && $util.isInteger(message.tabletUid.high)))
                                 return "tabletUid: integer|Long expected";
@@ -90045,9 +93584,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Tablet} Tablet
                      */
-                    Tablet.fromObject = function fromObject(object) {
+                    Tablet.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Tablet)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Tablet();
                         if (object.tabletUid != null)
                             if ($util.Long)
@@ -90215,7 +93758,7 @@
                         this.tablets = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -90311,9 +93854,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Group.decode = function decode(reader, length, error) {
+                    Group.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Group();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -90327,7 +93874,7 @@
                             case 2: {
                                     if (!(message.tablets && message.tablets.length))
                                         message.tablets = [];
-                                    message.tablets.push($root.google.spanner.v1.Tablet.decode(reader, reader.uint32()));
+                                    message.tablets.push($root.google.spanner.v1.Tablet.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 3: {
@@ -90339,7 +93886,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -90370,9 +93917,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Group.verify = function verify(message) {
+                    Group.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.groupUid != null && message.hasOwnProperty("groupUid"))
                             if (!$util.isInteger(message.groupUid) && !(message.groupUid && $util.isInteger(message.groupUid.low) && $util.isInteger(message.groupUid.high)))
                                 return "groupUid: integer|Long expected";
@@ -90380,7 +93931,7 @@
                             if (!Array.isArray(message.tablets))
                                 return "tablets: array expected";
                             for (var i = 0; i < message.tablets.length; ++i) {
-                                var error = $root.google.spanner.v1.Tablet.verify(message.tablets[i]);
+                                var error = $root.google.spanner.v1.Tablet.verify(message.tablets[i], long + 1);
                                 if (error)
                                     return "tablets." + error;
                             }
@@ -90402,9 +93953,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Group} Group
                      */
-                    Group.fromObject = function fromObject(object) {
+                    Group.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Group)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Group();
                         if (object.groupUid != null)
                             if ($util.Long)
@@ -90422,7 +93977,7 @@
                             for (var i = 0; i < object.tablets.length; ++i) {
                                 if (typeof object.tablets[i] !== "object")
                                     throw TypeError(".google.spanner.v1.Group.tablets: object expected");
-                                message.tablets[i] = $root.google.spanner.v1.Tablet.fromObject(object.tablets[i]);
+                                message.tablets[i] = $root.google.spanner.v1.Tablet.fromObject(object.tablets[i], long + 1);
                             }
                         }
                         if (object.leaderIndex != null)
@@ -90535,7 +94090,7 @@
                         this.part = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -90645,9 +94200,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    KeyRecipe.decode = function decode(reader, length, error) {
+                    KeyRecipe.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.KeyRecipe();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -90669,11 +94228,11 @@
                             case 4: {
                                     if (!(message.part && message.part.length))
                                         message.part = [];
-                                    message.part.push($root.google.spanner.v1.KeyRecipe.Part.decode(reader, reader.uint32()));
+                                    message.part.push($root.google.spanner.v1.KeyRecipe.Part.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -90704,9 +94263,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    KeyRecipe.verify = function verify(message) {
+                    KeyRecipe.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.tableName != null && message.hasOwnProperty("tableName")) {
                             properties.target = 1;
@@ -90731,7 +94294,7 @@
                             if (!Array.isArray(message.part))
                                 return "part: array expected";
                             for (var i = 0; i < message.part.length; ++i) {
-                                var error = $root.google.spanner.v1.KeyRecipe.Part.verify(message.part[i]);
+                                var error = $root.google.spanner.v1.KeyRecipe.Part.verify(message.part[i], long + 1);
                                 if (error)
                                     return "part." + error;
                             }
@@ -90747,9 +94310,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.KeyRecipe} KeyRecipe
                      */
-                    KeyRecipe.fromObject = function fromObject(object) {
+                    KeyRecipe.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.KeyRecipe)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.KeyRecipe();
                         if (object.tableName != null)
                             message.tableName = String(object.tableName);
@@ -90771,7 +94338,7 @@
                             for (var i = 0; i < object.part.length; ++i) {
                                 if (typeof object.part[i] !== "object")
                                     throw TypeError(".google.spanner.v1.KeyRecipe.part: object expected");
-                                message.part[i] = $root.google.spanner.v1.KeyRecipe.Part.fromObject(object.part[i]);
+                                message.part[i] = $root.google.spanner.v1.KeyRecipe.Part.fromObject(object.part[i], long + 1);
                             }
                         }
                         return message;
@@ -90872,7 +94439,7 @@
                             this.structIdentifiers = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -91025,9 +94592,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Part.decode = function decode(reader, length, error) {
+                        Part.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.KeyRecipe.Part();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -91047,7 +94618,7 @@
                                         break;
                                     }
                                 case 4: {
-                                        message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                        message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 5: {
@@ -91055,7 +94626,7 @@
                                         break;
                                     }
                                 case 6: {
-                                        message.value = $root.google.protobuf.Value.decode(reader, reader.uint32());
+                                        message.value = $root.google.protobuf.Value.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 8: {
@@ -91074,7 +94645,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -91105,9 +94676,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Part.verify = function verify(message) {
+                        Part.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             var properties = {};
                             if (message.tag != null && message.hasOwnProperty("tag"))
                                 if (!$util.isInteger(message.tag))
@@ -91132,7 +94707,7 @@
                                     break;
                                 }
                             if (message.type != null && message.hasOwnProperty("type")) {
-                                var error = $root.google.spanner.v1.Type.verify(message.type);
+                                var error = $root.google.spanner.v1.Type.verify(message.type, long + 1);
                                 if (error)
                                     return "type." + error;
                             }
@@ -91146,7 +94721,7 @@
                                     return "valueType: multiple values";
                                 properties.valueType = 1;
                                 {
-                                    var error = $root.google.protobuf.Value.verify(message.value);
+                                    var error = $root.google.protobuf.Value.verify(message.value, long + 1);
                                     if (error)
                                         return "value." + error;
                                 }
@@ -91176,9 +94751,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.KeyRecipe.Part} Part
                          */
-                        Part.fromObject = function fromObject(object) {
+                        Part.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.KeyRecipe.Part)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.KeyRecipe.Part();
                             if (object.tag != null)
                                 message.tag = object.tag >>> 0;
@@ -91229,14 +94808,14 @@
                             if (object.type != null) {
                                 if (typeof object.type !== "object")
                                     throw TypeError(".google.spanner.v1.KeyRecipe.Part.type: object expected");
-                                message.type = $root.google.spanner.v1.Type.fromObject(object.type);
+                                message.type = $root.google.spanner.v1.Type.fromObject(object.type, long + 1);
                             }
                             if (object.identifier != null)
                                 message.identifier = String(object.identifier);
                             if (object.value != null) {
                                 if (typeof object.value !== "object")
                                     throw TypeError(".google.spanner.v1.KeyRecipe.Part.value: object expected");
-                                message.value = $root.google.protobuf.Value.fromObject(object.value);
+                                message.value = $root.google.protobuf.Value.fromObject(object.value, long + 1);
                             }
                             if (object.random != null)
                                 message.random = Boolean(object.random);
@@ -91390,7 +94969,7 @@
                         this.recipe = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -91466,9 +95045,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    RecipeList.decode = function decode(reader, length, error) {
+                    RecipeList.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.RecipeList();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -91482,11 +95065,11 @@
                             case 3: {
                                     if (!(message.recipe && message.recipe.length))
                                         message.recipe = [];
-                                    message.recipe.push($root.google.spanner.v1.KeyRecipe.decode(reader, reader.uint32()));
+                                    message.recipe.push($root.google.spanner.v1.KeyRecipe.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -91517,9 +95100,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    RecipeList.verify = function verify(message) {
+                    RecipeList.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.schemaGeneration != null && message.hasOwnProperty("schemaGeneration"))
                             if (!(message.schemaGeneration && typeof message.schemaGeneration.length === "number" || $util.isString(message.schemaGeneration)))
                                 return "schemaGeneration: buffer expected";
@@ -91527,7 +95114,7 @@
                             if (!Array.isArray(message.recipe))
                                 return "recipe: array expected";
                             for (var i = 0; i < message.recipe.length; ++i) {
-                                var error = $root.google.spanner.v1.KeyRecipe.verify(message.recipe[i]);
+                                var error = $root.google.spanner.v1.KeyRecipe.verify(message.recipe[i], long + 1);
                                 if (error)
                                     return "recipe." + error;
                             }
@@ -91543,9 +95130,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.RecipeList} RecipeList
                      */
-                    RecipeList.fromObject = function fromObject(object) {
+                    RecipeList.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.RecipeList)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.RecipeList();
                         if (object.schemaGeneration != null)
                             if (typeof object.schemaGeneration === "string")
@@ -91559,7 +95150,7 @@
                             for (var i = 0; i < object.recipe.length; ++i) {
                                 if (typeof object.recipe[i] !== "object")
                                     throw TypeError(".google.spanner.v1.RecipeList.recipe: object expected");
-                                message.recipe[i] = $root.google.spanner.v1.KeyRecipe.fromObject(object.recipe[i]);
+                                message.recipe[i] = $root.google.spanner.v1.KeyRecipe.fromObject(object.recipe[i], long + 1);
                             }
                         }
                         return message;
@@ -91652,7 +95243,7 @@
                         this.group = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -91749,9 +95340,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    CacheUpdate.decode = function decode(reader, length, error) {
+                    CacheUpdate.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.CacheUpdate();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -91765,21 +95360,21 @@
                             case 2: {
                                     if (!(message.range && message.range.length))
                                         message.range = [];
-                                    message.range.push($root.google.spanner.v1.Range.decode(reader, reader.uint32()));
+                                    message.range.push($root.google.spanner.v1.Range.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 3: {
                                     if (!(message.group && message.group.length))
                                         message.group = [];
-                                    message.group.push($root.google.spanner.v1.Group.decode(reader, reader.uint32()));
+                                    message.group.push($root.google.spanner.v1.Group.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 5: {
-                                    message.keyRecipes = $root.google.spanner.v1.RecipeList.decode(reader, reader.uint32());
+                                    message.keyRecipes = $root.google.spanner.v1.RecipeList.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -91810,9 +95405,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    CacheUpdate.verify = function verify(message) {
+                    CacheUpdate.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.databaseId != null && message.hasOwnProperty("databaseId"))
                             if (!$util.isInteger(message.databaseId) && !(message.databaseId && $util.isInteger(message.databaseId.low) && $util.isInteger(message.databaseId.high)))
                                 return "databaseId: integer|Long expected";
@@ -91820,7 +95419,7 @@
                             if (!Array.isArray(message.range))
                                 return "range: array expected";
                             for (var i = 0; i < message.range.length; ++i) {
-                                var error = $root.google.spanner.v1.Range.verify(message.range[i]);
+                                var error = $root.google.spanner.v1.Range.verify(message.range[i], long + 1);
                                 if (error)
                                     return "range." + error;
                             }
@@ -91829,13 +95428,13 @@
                             if (!Array.isArray(message.group))
                                 return "group: array expected";
                             for (var i = 0; i < message.group.length; ++i) {
-                                var error = $root.google.spanner.v1.Group.verify(message.group[i]);
+                                var error = $root.google.spanner.v1.Group.verify(message.group[i], long + 1);
                                 if (error)
                                     return "group." + error;
                             }
                         }
                         if (message.keyRecipes != null && message.hasOwnProperty("keyRecipes")) {
-                            var error = $root.google.spanner.v1.RecipeList.verify(message.keyRecipes);
+                            var error = $root.google.spanner.v1.RecipeList.verify(message.keyRecipes, long + 1);
                             if (error)
                                 return "keyRecipes." + error;
                         }
@@ -91850,9 +95449,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.CacheUpdate} CacheUpdate
                      */
-                    CacheUpdate.fromObject = function fromObject(object) {
+                    CacheUpdate.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.CacheUpdate)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.CacheUpdate();
                         if (object.databaseId != null)
                             if ($util.Long)
@@ -91870,7 +95473,7 @@
                             for (var i = 0; i < object.range.length; ++i) {
                                 if (typeof object.range[i] !== "object")
                                     throw TypeError(".google.spanner.v1.CacheUpdate.range: object expected");
-                                message.range[i] = $root.google.spanner.v1.Range.fromObject(object.range[i]);
+                                message.range[i] = $root.google.spanner.v1.Range.fromObject(object.range[i], long + 1);
                             }
                         }
                         if (object.group) {
@@ -91880,13 +95483,13 @@
                             for (var i = 0; i < object.group.length; ++i) {
                                 if (typeof object.group[i] !== "object")
                                     throw TypeError(".google.spanner.v1.CacheUpdate.group: object expected");
-                                message.group[i] = $root.google.spanner.v1.Group.fromObject(object.group[i]);
+                                message.group[i] = $root.google.spanner.v1.Group.fromObject(object.group[i], long + 1);
                             }
                         }
                         if (object.keyRecipes != null) {
                             if (typeof object.keyRecipes !== "object")
                                 throw TypeError(".google.spanner.v1.CacheUpdate.keyRecipes: object expected");
-                            message.keyRecipes = $root.google.spanner.v1.RecipeList.fromObject(object.keyRecipes);
+                            message.keyRecipes = $root.google.spanner.v1.RecipeList.fromObject(object.keyRecipes, long + 1);
                         }
                         return message;
                     };
@@ -91995,7 +95598,7 @@
                         this.skippedTabletUid = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -92151,9 +95754,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    RoutingHint.decode = function decode(reader, length, error) {
+                    RoutingHint.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.RoutingHint();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -92195,7 +95802,7 @@
                             case 9: {
                                     if (!(message.skippedTabletUid && message.skippedTabletUid.length))
                                         message.skippedTabletUid = [];
-                                    message.skippedTabletUid.push($root.google.spanner.v1.RoutingHint.SkippedTablet.decode(reader, reader.uint32()));
+                                    message.skippedTabletUid.push($root.google.spanner.v1.RoutingHint.SkippedTablet.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 10: {
@@ -92203,7 +95810,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -92234,9 +95841,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    RoutingHint.verify = function verify(message) {
+                    RoutingHint.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.operationUid != null && message.hasOwnProperty("operationUid"))
                             if (!$util.isInteger(message.operationUid) && !(message.operationUid && $util.isInteger(message.operationUid.low) && $util.isInteger(message.operationUid.high)))
                                 return "operationUid: integer|Long expected";
@@ -92265,7 +95876,7 @@
                             if (!Array.isArray(message.skippedTabletUid))
                                 return "skippedTabletUid: array expected";
                             for (var i = 0; i < message.skippedTabletUid.length; ++i) {
-                                var error = $root.google.spanner.v1.RoutingHint.SkippedTablet.verify(message.skippedTabletUid[i]);
+                                var error = $root.google.spanner.v1.RoutingHint.SkippedTablet.verify(message.skippedTabletUid[i], long + 1);
                                 if (error)
                                     return "skippedTabletUid." + error;
                             }
@@ -92284,9 +95895,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.RoutingHint} RoutingHint
                      */
-                    RoutingHint.fromObject = function fromObject(object) {
+                    RoutingHint.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.RoutingHint)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.RoutingHint();
                         if (object.operationUid != null)
                             if ($util.Long)
@@ -92355,7 +95970,7 @@
                             for (var i = 0; i < object.skippedTabletUid.length; ++i) {
                                 if (typeof object.skippedTabletUid[i] !== "object")
                                     throw TypeError(".google.spanner.v1.RoutingHint.skippedTabletUid: object expected");
-                                message.skippedTabletUid[i] = $root.google.spanner.v1.RoutingHint.SkippedTablet.fromObject(object.skippedTabletUid[i]);
+                                message.skippedTabletUid[i] = $root.google.spanner.v1.RoutingHint.SkippedTablet.fromObject(object.skippedTabletUid[i], long + 1);
                             }
                         }
                         if (object.clientLocation != null)
@@ -92515,7 +96130,7 @@
                         function SkippedTablet(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -92590,9 +96205,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        SkippedTablet.decode = function decode(reader, length, error) {
+                        SkippedTablet.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.RoutingHint.SkippedTablet();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -92608,7 +96227,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -92639,9 +96258,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        SkippedTablet.verify = function verify(message) {
+                        SkippedTablet.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.tabletUid != null && message.hasOwnProperty("tabletUid"))
                                 if (!$util.isInteger(message.tabletUid) && !(message.tabletUid && $util.isInteger(message.tabletUid.low) && $util.isInteger(message.tabletUid.high)))
                                     return "tabletUid: integer|Long expected";
@@ -92659,9 +96282,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.RoutingHint.SkippedTablet} SkippedTablet
                          */
-                        SkippedTablet.fromObject = function fromObject(object) {
+                        SkippedTablet.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.RoutingHint.SkippedTablet)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.RoutingHint.SkippedTablet();
                             if (object.tabletUid != null)
                                 if ($util.Long)
@@ -92773,7 +96400,7 @@
                     function Type(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -92878,9 +96505,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Type.decode = function decode(reader, length, error) {
+                    Type.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Type();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -92892,11 +96523,11 @@
                                     break;
                                 }
                             case 2: {
-                                    message.arrayElementType = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                    message.arrayElementType = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.structType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32());
+                                    message.structType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
@@ -92908,7 +96539,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -92939,9 +96570,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Type.verify = function verify(message) {
+                    Type.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.code != null && message.hasOwnProperty("code"))
                             switch (message.code) {
                             default:
@@ -92966,12 +96601,12 @@
                                 break;
                             }
                         if (message.arrayElementType != null && message.hasOwnProperty("arrayElementType")) {
-                            var error = $root.google.spanner.v1.Type.verify(message.arrayElementType);
+                            var error = $root.google.spanner.v1.Type.verify(message.arrayElementType, long + 1);
                             if (error)
                                 return "arrayElementType." + error;
                         }
                         if (message.structType != null && message.hasOwnProperty("structType")) {
-                            var error = $root.google.spanner.v1.StructType.verify(message.structType);
+                            var error = $root.google.spanner.v1.StructType.verify(message.structType, long + 1);
                             if (error)
                                 return "structType." + error;
                         }
@@ -92999,9 +96634,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Type} Type
                      */
-                    Type.fromObject = function fromObject(object) {
+                    Type.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Type)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Type();
                         switch (object.code) {
                         default:
@@ -93082,12 +96721,12 @@
                         if (object.arrayElementType != null) {
                             if (typeof object.arrayElementType !== "object")
                                 throw TypeError(".google.spanner.v1.Type.arrayElementType: object expected");
-                            message.arrayElementType = $root.google.spanner.v1.Type.fromObject(object.arrayElementType);
+                            message.arrayElementType = $root.google.spanner.v1.Type.fromObject(object.arrayElementType, long + 1);
                         }
                         if (object.structType != null) {
                             if (typeof object.structType !== "object")
                                 throw TypeError(".google.spanner.v1.Type.structType: object expected");
-                            message.structType = $root.google.spanner.v1.StructType.fromObject(object.structType);
+                            message.structType = $root.google.spanner.v1.StructType.fromObject(object.structType, long + 1);
                         }
                         switch (object.typeAnnotation) {
                         default:
@@ -93201,7 +96840,7 @@
                         this.fields = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -93267,9 +96906,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    StructType.decode = function decode(reader, length, error) {
+                    StructType.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.StructType();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -93279,11 +96922,11 @@
                             case 1: {
                                     if (!(message.fields && message.fields.length))
                                         message.fields = [];
-                                    message.fields.push($root.google.spanner.v1.StructType.Field.decode(reader, reader.uint32()));
+                                    message.fields.push($root.google.spanner.v1.StructType.Field.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -93314,14 +96957,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    StructType.verify = function verify(message) {
+                    StructType.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.fields != null && message.hasOwnProperty("fields")) {
                             if (!Array.isArray(message.fields))
                                 return "fields: array expected";
                             for (var i = 0; i < message.fields.length; ++i) {
-                                var error = $root.google.spanner.v1.StructType.Field.verify(message.fields[i]);
+                                var error = $root.google.spanner.v1.StructType.Field.verify(message.fields[i], long + 1);
                                 if (error)
                                     return "fields." + error;
                             }
@@ -93337,9 +96984,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.StructType} StructType
                      */
-                    StructType.fromObject = function fromObject(object) {
+                    StructType.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.StructType)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.StructType();
                         if (object.fields) {
                             if (!Array.isArray(object.fields))
@@ -93348,7 +96999,7 @@
                             for (var i = 0; i < object.fields.length; ++i) {
                                 if (typeof object.fields[i] !== "object")
                                     throw TypeError(".google.spanner.v1.StructType.fields: object expected");
-                                message.fields[i] = $root.google.spanner.v1.StructType.Field.fromObject(object.fields[i]);
+                                message.fields[i] = $root.google.spanner.v1.StructType.Field.fromObject(object.fields[i], long + 1);
                             }
                         }
                         return message;
@@ -93424,7 +97075,7 @@
                         function Field(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -93499,9 +97150,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Field.decode = function decode(reader, length, error) {
+                        Field.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.StructType.Field();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -93513,11 +97168,11 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                        message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -93548,14 +97203,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Field.verify = function verify(message) {
+                        Field.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.name != null && message.hasOwnProperty("name"))
                                 if (!$util.isString(message.name))
                                     return "name: string expected";
                             if (message.type != null && message.hasOwnProperty("type")) {
-                                var error = $root.google.spanner.v1.Type.verify(message.type);
+                                var error = $root.google.spanner.v1.Type.verify(message.type, long + 1);
                                 if (error)
                                     return "type." + error;
                             }
@@ -93570,16 +97229,20 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.StructType.Field} Field
                          */
-                        Field.fromObject = function fromObject(object) {
+                        Field.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.StructType.Field)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.StructType.Field();
                             if (object.name != null)
                                 message.name = String(object.name);
                             if (object.type != null) {
                                 if (typeof object.type !== "object")
                                     throw TypeError(".google.spanner.v1.StructType.Field.type: object expected");
-                                message.type = $root.google.spanner.v1.Type.fromObject(object.type);
+                                message.type = $root.google.spanner.v1.Type.fromObject(object.type, long + 1);
                             }
                             return message;
                         };
@@ -93728,7 +97391,7 @@
                     function Mutation(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -93867,9 +97530,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Mutation.decode = function decode(reader, length, error) {
+                    Mutation.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Mutation();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -93877,35 +97544,35 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.insert = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32());
+                                    message.insert = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.update = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32());
+                                    message.update = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.insertOrUpdate = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32());
+                                    message.insertOrUpdate = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
-                                    message.replace = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32());
+                                    message.replace = $root.google.spanner.v1.Mutation.Write.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
-                                    message["delete"] = $root.google.spanner.v1.Mutation.Delete.decode(reader, reader.uint32());
+                                    message["delete"] = $root.google.spanner.v1.Mutation.Delete.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 6: {
-                                    message.send = $root.google.spanner.v1.Mutation.Send.decode(reader, reader.uint32());
+                                    message.send = $root.google.spanner.v1.Mutation.Send.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 7: {
-                                    message.ack = $root.google.spanner.v1.Mutation.Ack.decode(reader, reader.uint32());
+                                    message.ack = $root.google.spanner.v1.Mutation.Ack.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -93936,14 +97603,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Mutation.verify = function verify(message) {
+                    Mutation.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.insert != null && message.hasOwnProperty("insert")) {
                             properties.operation = 1;
                             {
-                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.insert);
+                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.insert, long + 1);
                                 if (error)
                                     return "insert." + error;
                             }
@@ -93953,7 +97624,7 @@
                                 return "operation: multiple values";
                             properties.operation = 1;
                             {
-                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.update);
+                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.update, long + 1);
                                 if (error)
                                     return "update." + error;
                             }
@@ -93963,7 +97634,7 @@
                                 return "operation: multiple values";
                             properties.operation = 1;
                             {
-                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.insertOrUpdate);
+                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.insertOrUpdate, long + 1);
                                 if (error)
                                     return "insertOrUpdate." + error;
                             }
@@ -93973,7 +97644,7 @@
                                 return "operation: multiple values";
                             properties.operation = 1;
                             {
-                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.replace);
+                                var error = $root.google.spanner.v1.Mutation.Write.verify(message.replace, long + 1);
                                 if (error)
                                     return "replace." + error;
                             }
@@ -93983,7 +97654,7 @@
                                 return "operation: multiple values";
                             properties.operation = 1;
                             {
-                                var error = $root.google.spanner.v1.Mutation.Delete.verify(message["delete"]);
+                                var error = $root.google.spanner.v1.Mutation.Delete.verify(message["delete"], long + 1);
                                 if (error)
                                     return "delete." + error;
                             }
@@ -93993,7 +97664,7 @@
                                 return "operation: multiple values";
                             properties.operation = 1;
                             {
-                                var error = $root.google.spanner.v1.Mutation.Send.verify(message.send);
+                                var error = $root.google.spanner.v1.Mutation.Send.verify(message.send, long + 1);
                                 if (error)
                                     return "send." + error;
                             }
@@ -94003,7 +97674,7 @@
                                 return "operation: multiple values";
                             properties.operation = 1;
                             {
-                                var error = $root.google.spanner.v1.Mutation.Ack.verify(message.ack);
+                                var error = $root.google.spanner.v1.Mutation.Ack.verify(message.ack, long + 1);
                                 if (error)
                                     return "ack." + error;
                             }
@@ -94019,44 +97690,48 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.Mutation} Mutation
                      */
-                    Mutation.fromObject = function fromObject(object) {
+                    Mutation.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.Mutation)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.Mutation();
                         if (object.insert != null) {
                             if (typeof object.insert !== "object")
                                 throw TypeError(".google.spanner.v1.Mutation.insert: object expected");
-                            message.insert = $root.google.spanner.v1.Mutation.Write.fromObject(object.insert);
+                            message.insert = $root.google.spanner.v1.Mutation.Write.fromObject(object.insert, long + 1);
                         }
                         if (object.update != null) {
                             if (typeof object.update !== "object")
                                 throw TypeError(".google.spanner.v1.Mutation.update: object expected");
-                            message.update = $root.google.spanner.v1.Mutation.Write.fromObject(object.update);
+                            message.update = $root.google.spanner.v1.Mutation.Write.fromObject(object.update, long + 1);
                         }
                         if (object.insertOrUpdate != null) {
                             if (typeof object.insertOrUpdate !== "object")
                                 throw TypeError(".google.spanner.v1.Mutation.insertOrUpdate: object expected");
-                            message.insertOrUpdate = $root.google.spanner.v1.Mutation.Write.fromObject(object.insertOrUpdate);
+                            message.insertOrUpdate = $root.google.spanner.v1.Mutation.Write.fromObject(object.insertOrUpdate, long + 1);
                         }
                         if (object.replace != null) {
                             if (typeof object.replace !== "object")
                                 throw TypeError(".google.spanner.v1.Mutation.replace: object expected");
-                            message.replace = $root.google.spanner.v1.Mutation.Write.fromObject(object.replace);
+                            message.replace = $root.google.spanner.v1.Mutation.Write.fromObject(object.replace, long + 1);
                         }
                         if (object["delete"] != null) {
                             if (typeof object["delete"] !== "object")
                                 throw TypeError(".google.spanner.v1.Mutation.delete: object expected");
-                            message["delete"] = $root.google.spanner.v1.Mutation.Delete.fromObject(object["delete"]);
+                            message["delete"] = $root.google.spanner.v1.Mutation.Delete.fromObject(object["delete"], long + 1);
                         }
                         if (object.send != null) {
                             if (typeof object.send !== "object")
                                 throw TypeError(".google.spanner.v1.Mutation.send: object expected");
-                            message.send = $root.google.spanner.v1.Mutation.Send.fromObject(object.send);
+                            message.send = $root.google.spanner.v1.Mutation.Send.fromObject(object.send, long + 1);
                         }
                         if (object.ack != null) {
                             if (typeof object.ack !== "object")
                                 throw TypeError(".google.spanner.v1.Mutation.ack: object expected");
-                            message.ack = $root.google.spanner.v1.Mutation.Ack.fromObject(object.ack);
+                            message.ack = $root.google.spanner.v1.Mutation.Ack.fromObject(object.ack, long + 1);
                         }
                         return message;
                     };
@@ -94162,7 +97837,7 @@
                             this.values = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -94249,9 +97924,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Write.decode = function decode(reader, length, error) {
+                        Write.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Mutation.Write();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -94271,11 +97950,11 @@
                                 case 3: {
                                         if (!(message.values && message.values.length))
                                             message.values = [];
-                                        message.values.push($root.google.protobuf.ListValue.decode(reader, reader.uint32()));
+                                        message.values.push($root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -94306,9 +97985,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Write.verify = function verify(message) {
+                        Write.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.table != null && message.hasOwnProperty("table"))
                                 if (!$util.isString(message.table))
                                     return "table: string expected";
@@ -94323,7 +98006,7 @@
                                 if (!Array.isArray(message.values))
                                     return "values: array expected";
                                 for (var i = 0; i < message.values.length; ++i) {
-                                    var error = $root.google.protobuf.ListValue.verify(message.values[i]);
+                                    var error = $root.google.protobuf.ListValue.verify(message.values[i], long + 1);
                                     if (error)
                                         return "values." + error;
                                 }
@@ -94339,9 +98022,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.Mutation.Write} Write
                          */
-                        Write.fromObject = function fromObject(object) {
+                        Write.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.Mutation.Write)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.Mutation.Write();
                             if (object.table != null)
                                 message.table = String(object.table);
@@ -94359,7 +98046,7 @@
                                 for (var i = 0; i < object.values.length; ++i) {
                                     if (typeof object.values[i] !== "object")
                                         throw TypeError(".google.spanner.v1.Mutation.Write.values: object expected");
-                                    message.values[i] = $root.google.protobuf.ListValue.fromObject(object.values[i]);
+                                    message.values[i] = $root.google.protobuf.ListValue.fromObject(object.values[i], long + 1);
                                 }
                             }
                             return message;
@@ -94449,7 +98136,7 @@
                         function Delete(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -94524,9 +98211,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Delete.decode = function decode(reader, length, error) {
+                        Delete.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Mutation.Delete();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -94538,11 +98229,11 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.keySet = $root.google.spanner.v1.KeySet.decode(reader, reader.uint32());
+                                        message.keySet = $root.google.spanner.v1.KeySet.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -94573,14 +98264,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Delete.verify = function verify(message) {
+                        Delete.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.table != null && message.hasOwnProperty("table"))
                                 if (!$util.isString(message.table))
                                     return "table: string expected";
                             if (message.keySet != null && message.hasOwnProperty("keySet")) {
-                                var error = $root.google.spanner.v1.KeySet.verify(message.keySet);
+                                var error = $root.google.spanner.v1.KeySet.verify(message.keySet, long + 1);
                                 if (error)
                                     return "keySet." + error;
                             }
@@ -94595,16 +98290,20 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.Mutation.Delete} Delete
                          */
-                        Delete.fromObject = function fromObject(object) {
+                        Delete.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.Mutation.Delete)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.Mutation.Delete();
                             if (object.table != null)
                                 message.table = String(object.table);
                             if (object.keySet != null) {
                                 if (typeof object.keySet !== "object")
                                     throw TypeError(".google.spanner.v1.Mutation.Delete.keySet: object expected");
-                                message.keySet = $root.google.spanner.v1.KeySet.fromObject(object.keySet);
+                                message.keySet = $root.google.spanner.v1.KeySet.fromObject(object.keySet, long + 1);
                             }
                             return message;
                         };
@@ -94685,7 +98384,7 @@
                         function Send(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -94780,9 +98479,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Send.decode = function decode(reader, length, error) {
+                        Send.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Mutation.Send();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -94794,19 +98497,19 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.key = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                        message.key = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
-                                        message.deliverTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.deliverTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 4: {
-                                        message.payload = $root.google.protobuf.Value.decode(reader, reader.uint32());
+                                        message.payload = $root.google.protobuf.Value.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -94837,24 +98540,28 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Send.verify = function verify(message) {
+                        Send.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.queue != null && message.hasOwnProperty("queue"))
                                 if (!$util.isString(message.queue))
                                     return "queue: string expected";
                             if (message.key != null && message.hasOwnProperty("key")) {
-                                var error = $root.google.protobuf.ListValue.verify(message.key);
+                                var error = $root.google.protobuf.ListValue.verify(message.key, long + 1);
                                 if (error)
                                     return "key." + error;
                             }
                             if (message.deliverTime != null && message.hasOwnProperty("deliverTime")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.deliverTime);
+                                var error = $root.google.protobuf.Timestamp.verify(message.deliverTime, long + 1);
                                 if (error)
                                     return "deliverTime." + error;
                             }
                             if (message.payload != null && message.hasOwnProperty("payload")) {
-                                var error = $root.google.protobuf.Value.verify(message.payload);
+                                var error = $root.google.protobuf.Value.verify(message.payload, long + 1);
                                 if (error)
                                     return "payload." + error;
                             }
@@ -94869,26 +98576,30 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.Mutation.Send} Send
                          */
-                        Send.fromObject = function fromObject(object) {
+                        Send.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.Mutation.Send)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.Mutation.Send();
                             if (object.queue != null)
                                 message.queue = String(object.queue);
                             if (object.key != null) {
                                 if (typeof object.key !== "object")
                                     throw TypeError(".google.spanner.v1.Mutation.Send.key: object expected");
-                                message.key = $root.google.protobuf.ListValue.fromObject(object.key);
+                                message.key = $root.google.protobuf.ListValue.fromObject(object.key, long + 1);
                             }
                             if (object.deliverTime != null) {
                                 if (typeof object.deliverTime !== "object")
                                     throw TypeError(".google.spanner.v1.Mutation.Send.deliverTime: object expected");
-                                message.deliverTime = $root.google.protobuf.Timestamp.fromObject(object.deliverTime);
+                                message.deliverTime = $root.google.protobuf.Timestamp.fromObject(object.deliverTime, long + 1);
                             }
                             if (object.payload != null) {
                                 if (typeof object.payload !== "object")
                                     throw TypeError(".google.spanner.v1.Mutation.Send.payload: object expected");
-                                message.payload = $root.google.protobuf.Value.fromObject(object.payload);
+                                message.payload = $root.google.protobuf.Value.fromObject(object.payload, long + 1);
                             }
                             return message;
                         };
@@ -94974,7 +98685,7 @@
                         function Ack(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -95059,9 +98770,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        Ack.decode = function decode(reader, length, error) {
+                        Ack.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.Mutation.Ack();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -95073,7 +98788,7 @@
                                         break;
                                     }
                                 case 2: {
-                                        message.key = $root.google.protobuf.ListValue.decode(reader, reader.uint32());
+                                        message.key = $root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 3: {
@@ -95081,7 +98796,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -95112,14 +98827,18 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        Ack.verify = function verify(message) {
+                        Ack.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.queue != null && message.hasOwnProperty("queue"))
                                 if (!$util.isString(message.queue))
                                     return "queue: string expected";
                             if (message.key != null && message.hasOwnProperty("key")) {
-                                var error = $root.google.protobuf.ListValue.verify(message.key);
+                                var error = $root.google.protobuf.ListValue.verify(message.key, long + 1);
                                 if (error)
                                     return "key." + error;
                             }
@@ -95137,16 +98856,20 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.Mutation.Ack} Ack
                          */
-                        Ack.fromObject = function fromObject(object) {
+                        Ack.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.Mutation.Ack)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.Mutation.Ack();
                             if (object.queue != null)
                                 message.queue = String(object.queue);
                             if (object.key != null) {
                                 if (typeof object.key !== "object")
                                     throw TypeError(".google.spanner.v1.Mutation.Ack.key: object expected");
-                                message.key = $root.google.protobuf.ListValue.fromObject(object.key);
+                                message.key = $root.google.protobuf.ListValue.fromObject(object.key, long + 1);
                             }
                             if (object.ignoreNotFound != null)
                                 message.ignoreNotFound = Boolean(object.ignoreNotFound);
@@ -95237,7 +98960,7 @@
                         this.rows = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -95343,9 +99066,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ResultSet.decode = function decode(reader, length, error) {
+                    ResultSet.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ResultSet();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -95353,29 +99080,29 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.metadata = $root.google.spanner.v1.ResultSetMetadata.decode(reader, reader.uint32());
+                                    message.metadata = $root.google.spanner.v1.ResultSetMetadata.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
                                     if (!(message.rows && message.rows.length))
                                         message.rows = [];
-                                    message.rows.push($root.google.protobuf.ListValue.decode(reader, reader.uint32()));
+                                    message.rows.push($root.google.protobuf.ListValue.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 3: {
-                                    message.stats = $root.google.spanner.v1.ResultSetStats.decode(reader, reader.uint32());
+                                    message.stats = $root.google.spanner.v1.ResultSetStats.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
-                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32());
+                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 6: {
-                                    message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.decode(reader, reader.uint32());
+                                    message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -95406,11 +99133,15 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ResultSet.verify = function verify(message) {
+                    ResultSet.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.metadata != null && message.hasOwnProperty("metadata")) {
-                            var error = $root.google.spanner.v1.ResultSetMetadata.verify(message.metadata);
+                            var error = $root.google.spanner.v1.ResultSetMetadata.verify(message.metadata, long + 1);
                             if (error)
                                 return "metadata." + error;
                         }
@@ -95418,23 +99149,23 @@
                             if (!Array.isArray(message.rows))
                                 return "rows: array expected";
                             for (var i = 0; i < message.rows.length; ++i) {
-                                var error = $root.google.protobuf.ListValue.verify(message.rows[i]);
+                                var error = $root.google.protobuf.ListValue.verify(message.rows[i], long + 1);
                                 if (error)
                                     return "rows." + error;
                             }
                         }
                         if (message.stats != null && message.hasOwnProperty("stats")) {
-                            var error = $root.google.spanner.v1.ResultSetStats.verify(message.stats);
+                            var error = $root.google.spanner.v1.ResultSetStats.verify(message.stats, long + 1);
                             if (error)
                                 return "stats." + error;
                         }
                         if (message.precommitToken != null && message.hasOwnProperty("precommitToken")) {
-                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken);
+                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken, long + 1);
                             if (error)
                                 return "precommitToken." + error;
                         }
                         if (message.cacheUpdate != null && message.hasOwnProperty("cacheUpdate")) {
-                            var error = $root.google.spanner.v1.CacheUpdate.verify(message.cacheUpdate);
+                            var error = $root.google.spanner.v1.CacheUpdate.verify(message.cacheUpdate, long + 1);
                             if (error)
                                 return "cacheUpdate." + error;
                         }
@@ -95449,14 +99180,18 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ResultSet} ResultSet
                      */
-                    ResultSet.fromObject = function fromObject(object) {
+                    ResultSet.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ResultSet)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ResultSet();
                         if (object.metadata != null) {
                             if (typeof object.metadata !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSet.metadata: object expected");
-                            message.metadata = $root.google.spanner.v1.ResultSetMetadata.fromObject(object.metadata);
+                            message.metadata = $root.google.spanner.v1.ResultSetMetadata.fromObject(object.metadata, long + 1);
                         }
                         if (object.rows) {
                             if (!Array.isArray(object.rows))
@@ -95465,23 +99200,23 @@
                             for (var i = 0; i < object.rows.length; ++i) {
                                 if (typeof object.rows[i] !== "object")
                                     throw TypeError(".google.spanner.v1.ResultSet.rows: object expected");
-                                message.rows[i] = $root.google.protobuf.ListValue.fromObject(object.rows[i]);
+                                message.rows[i] = $root.google.protobuf.ListValue.fromObject(object.rows[i], long + 1);
                             }
                         }
                         if (object.stats != null) {
                             if (typeof object.stats !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSet.stats: object expected");
-                            message.stats = $root.google.spanner.v1.ResultSetStats.fromObject(object.stats);
+                            message.stats = $root.google.spanner.v1.ResultSetStats.fromObject(object.stats, long + 1);
                         }
                         if (object.precommitToken != null) {
                             if (typeof object.precommitToken !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSet.precommitToken: object expected");
-                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken);
+                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken, long + 1);
                         }
                         if (object.cacheUpdate != null) {
                             if (typeof object.cacheUpdate !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSet.cacheUpdate: object expected");
-                            message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.fromObject(object.cacheUpdate);
+                            message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.fromObject(object.cacheUpdate, long + 1);
                         }
                         return message;
                     };
@@ -95580,7 +99315,7 @@
                         this.values = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -95716,9 +99451,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    PartialResultSet.decode = function decode(reader, length, error) {
+                    PartialResultSet.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PartialResultSet();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -95726,13 +99465,13 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.metadata = $root.google.spanner.v1.ResultSetMetadata.decode(reader, reader.uint32());
+                                    message.metadata = $root.google.spanner.v1.ResultSetMetadata.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
                                     if (!(message.values && message.values.length))
                                         message.values = [];
-                                    message.values.push($root.google.protobuf.Value.decode(reader, reader.uint32()));
+                                    message.values.push($root.google.protobuf.Value.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 3: {
@@ -95744,11 +99483,11 @@
                                     break;
                                 }
                             case 5: {
-                                    message.stats = $root.google.spanner.v1.ResultSetStats.decode(reader, reader.uint32());
+                                    message.stats = $root.google.spanner.v1.ResultSetStats.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 8: {
-                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32());
+                                    message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 9: {
@@ -95756,11 +99495,11 @@
                                     break;
                                 }
                             case 10: {
-                                    message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.decode(reader, reader.uint32());
+                                    message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -95791,11 +99530,15 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    PartialResultSet.verify = function verify(message) {
+                    PartialResultSet.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.metadata != null && message.hasOwnProperty("metadata")) {
-                            var error = $root.google.spanner.v1.ResultSetMetadata.verify(message.metadata);
+                            var error = $root.google.spanner.v1.ResultSetMetadata.verify(message.metadata, long + 1);
                             if (error)
                                 return "metadata." + error;
                         }
@@ -95803,7 +99546,7 @@
                             if (!Array.isArray(message.values))
                                 return "values: array expected";
                             for (var i = 0; i < message.values.length; ++i) {
-                                var error = $root.google.protobuf.Value.verify(message.values[i]);
+                                var error = $root.google.protobuf.Value.verify(message.values[i], long + 1);
                                 if (error)
                                     return "values." + error;
                             }
@@ -95815,12 +99558,12 @@
                             if (!(message.resumeToken && typeof message.resumeToken.length === "number" || $util.isString(message.resumeToken)))
                                 return "resumeToken: buffer expected";
                         if (message.stats != null && message.hasOwnProperty("stats")) {
-                            var error = $root.google.spanner.v1.ResultSetStats.verify(message.stats);
+                            var error = $root.google.spanner.v1.ResultSetStats.verify(message.stats, long + 1);
                             if (error)
                                 return "stats." + error;
                         }
                         if (message.precommitToken != null && message.hasOwnProperty("precommitToken")) {
-                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken);
+                            var error = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.verify(message.precommitToken, long + 1);
                             if (error)
                                 return "precommitToken." + error;
                         }
@@ -95828,7 +99571,7 @@
                             if (typeof message.last !== "boolean")
                                 return "last: boolean expected";
                         if (message.cacheUpdate != null && message.hasOwnProperty("cacheUpdate")) {
-                            var error = $root.google.spanner.v1.CacheUpdate.verify(message.cacheUpdate);
+                            var error = $root.google.spanner.v1.CacheUpdate.verify(message.cacheUpdate, long + 1);
                             if (error)
                                 return "cacheUpdate." + error;
                         }
@@ -95843,14 +99586,18 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.PartialResultSet} PartialResultSet
                      */
-                    PartialResultSet.fromObject = function fromObject(object) {
+                    PartialResultSet.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.PartialResultSet)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.PartialResultSet();
                         if (object.metadata != null) {
                             if (typeof object.metadata !== "object")
                                 throw TypeError(".google.spanner.v1.PartialResultSet.metadata: object expected");
-                            message.metadata = $root.google.spanner.v1.ResultSetMetadata.fromObject(object.metadata);
+                            message.metadata = $root.google.spanner.v1.ResultSetMetadata.fromObject(object.metadata, long + 1);
                         }
                         if (object.values) {
                             if (!Array.isArray(object.values))
@@ -95859,7 +99606,7 @@
                             for (var i = 0; i < object.values.length; ++i) {
                                 if (typeof object.values[i] !== "object")
                                     throw TypeError(".google.spanner.v1.PartialResultSet.values: object expected");
-                                message.values[i] = $root.google.protobuf.Value.fromObject(object.values[i]);
+                                message.values[i] = $root.google.protobuf.Value.fromObject(object.values[i], long + 1);
                             }
                         }
                         if (object.chunkedValue != null)
@@ -95872,19 +99619,19 @@
                         if (object.stats != null) {
                             if (typeof object.stats !== "object")
                                 throw TypeError(".google.spanner.v1.PartialResultSet.stats: object expected");
-                            message.stats = $root.google.spanner.v1.ResultSetStats.fromObject(object.stats);
+                            message.stats = $root.google.spanner.v1.ResultSetStats.fromObject(object.stats, long + 1);
                         }
                         if (object.precommitToken != null) {
                             if (typeof object.precommitToken !== "object")
                                 throw TypeError(".google.spanner.v1.PartialResultSet.precommitToken: object expected");
-                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken);
+                            message.precommitToken = $root.google.spanner.v1.MultiplexedSessionPrecommitToken.fromObject(object.precommitToken, long + 1);
                         }
                         if (object.last != null)
                             message.last = Boolean(object.last);
                         if (object.cacheUpdate != null) {
                             if (typeof object.cacheUpdate !== "object")
                                 throw TypeError(".google.spanner.v1.PartialResultSet.cacheUpdate: object expected");
-                            message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.fromObject(object.cacheUpdate);
+                            message.cacheUpdate = $root.google.spanner.v1.CacheUpdate.fromObject(object.cacheUpdate, long + 1);
                         }
                         return message;
                     };
@@ -95992,7 +99739,7 @@
                     function ResultSetMetadata(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -96077,9 +99824,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ResultSetMetadata.decode = function decode(reader, length, error) {
+                    ResultSetMetadata.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ResultSetMetadata();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -96087,19 +99838,19 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.rowType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32());
+                                    message.rowType = $root.google.spanner.v1.StructType.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.transaction = $root.google.spanner.v1.Transaction.decode(reader, reader.uint32());
+                                    message.transaction = $root.google.spanner.v1.Transaction.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.undeclaredParameters = $root.google.spanner.v1.StructType.decode(reader, reader.uint32());
+                                    message.undeclaredParameters = $root.google.spanner.v1.StructType.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -96130,21 +99881,25 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ResultSetMetadata.verify = function verify(message) {
+                    ResultSetMetadata.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.rowType != null && message.hasOwnProperty("rowType")) {
-                            var error = $root.google.spanner.v1.StructType.verify(message.rowType);
+                            var error = $root.google.spanner.v1.StructType.verify(message.rowType, long + 1);
                             if (error)
                                 return "rowType." + error;
                         }
                         if (message.transaction != null && message.hasOwnProperty("transaction")) {
-                            var error = $root.google.spanner.v1.Transaction.verify(message.transaction);
+                            var error = $root.google.spanner.v1.Transaction.verify(message.transaction, long + 1);
                             if (error)
                                 return "transaction." + error;
                         }
                         if (message.undeclaredParameters != null && message.hasOwnProperty("undeclaredParameters")) {
-                            var error = $root.google.spanner.v1.StructType.verify(message.undeclaredParameters);
+                            var error = $root.google.spanner.v1.StructType.verify(message.undeclaredParameters, long + 1);
                             if (error)
                                 return "undeclaredParameters." + error;
                         }
@@ -96159,24 +99914,28 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ResultSetMetadata} ResultSetMetadata
                      */
-                    ResultSetMetadata.fromObject = function fromObject(object) {
+                    ResultSetMetadata.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ResultSetMetadata)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ResultSetMetadata();
                         if (object.rowType != null) {
                             if (typeof object.rowType !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSetMetadata.rowType: object expected");
-                            message.rowType = $root.google.spanner.v1.StructType.fromObject(object.rowType);
+                            message.rowType = $root.google.spanner.v1.StructType.fromObject(object.rowType, long + 1);
                         }
                         if (object.transaction != null) {
                             if (typeof object.transaction !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSetMetadata.transaction: object expected");
-                            message.transaction = $root.google.spanner.v1.Transaction.fromObject(object.transaction);
+                            message.transaction = $root.google.spanner.v1.Transaction.fromObject(object.transaction, long + 1);
                         }
                         if (object.undeclaredParameters != null) {
                             if (typeof object.undeclaredParameters !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSetMetadata.undeclaredParameters: object expected");
-                            message.undeclaredParameters = $root.google.spanner.v1.StructType.fromObject(object.undeclaredParameters);
+                            message.undeclaredParameters = $root.google.spanner.v1.StructType.fromObject(object.undeclaredParameters, long + 1);
                         }
                         return message;
                     };
@@ -96260,7 +100019,7 @@
                     function ResultSetStats(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -96369,9 +100128,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ResultSetStats.decode = function decode(reader, length, error) {
+                    ResultSetStats.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ResultSetStats();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -96379,11 +100142,11 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.queryPlan = $root.google.spanner.v1.QueryPlan.decode(reader, reader.uint32());
+                                    message.queryPlan = $root.google.spanner.v1.QueryPlan.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.queryStats = $root.google.protobuf.Struct.decode(reader, reader.uint32());
+                                    message.queryStats = $root.google.protobuf.Struct.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
@@ -96395,7 +100158,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -96426,17 +100189,21 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ResultSetStats.verify = function verify(message) {
+                    ResultSetStats.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.queryPlan != null && message.hasOwnProperty("queryPlan")) {
-                            var error = $root.google.spanner.v1.QueryPlan.verify(message.queryPlan);
+                            var error = $root.google.spanner.v1.QueryPlan.verify(message.queryPlan, long + 1);
                             if (error)
                                 return "queryPlan." + error;
                         }
                         if (message.queryStats != null && message.hasOwnProperty("queryStats")) {
-                            var error = $root.google.protobuf.Struct.verify(message.queryStats);
+                            var error = $root.google.protobuf.Struct.verify(message.queryStats, long + 1);
                             if (error)
                                 return "queryStats." + error;
                         }
@@ -96463,19 +100230,23 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ResultSetStats} ResultSetStats
                      */
-                    ResultSetStats.fromObject = function fromObject(object) {
+                    ResultSetStats.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ResultSetStats)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ResultSetStats();
                         if (object.queryPlan != null) {
                             if (typeof object.queryPlan !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSetStats.queryPlan: object expected");
-                            message.queryPlan = $root.google.spanner.v1.QueryPlan.fromObject(object.queryPlan);
+                            message.queryPlan = $root.google.spanner.v1.QueryPlan.fromObject(object.queryPlan, long + 1);
                         }
                         if (object.queryStats != null) {
                             if (typeof object.queryStats !== "object")
                                 throw TypeError(".google.spanner.v1.ResultSetStats.queryStats: object expected");
-                            message.queryStats = $root.google.protobuf.Struct.fromObject(object.queryStats);
+                            message.queryStats = $root.google.protobuf.Struct.fromObject(object.queryStats, long + 1);
                         }
                         if (object.rowCountExact != null)
                             if ($util.Long)
@@ -96594,7 +100365,7 @@
                         this.childLinks = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -96720,9 +100491,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    PlanNode.decode = function decode(reader, length, error) {
+                    PlanNode.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PlanNode();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -96744,23 +100519,23 @@
                             case 4: {
                                     if (!(message.childLinks && message.childLinks.length))
                                         message.childLinks = [];
-                                    message.childLinks.push($root.google.spanner.v1.PlanNode.ChildLink.decode(reader, reader.uint32()));
+                                    message.childLinks.push($root.google.spanner.v1.PlanNode.ChildLink.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 5: {
-                                    message.shortRepresentation = $root.google.spanner.v1.PlanNode.ShortRepresentation.decode(reader, reader.uint32());
+                                    message.shortRepresentation = $root.google.spanner.v1.PlanNode.ShortRepresentation.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 6: {
-                                    message.metadata = $root.google.protobuf.Struct.decode(reader, reader.uint32());
+                                    message.metadata = $root.google.protobuf.Struct.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 7: {
-                                    message.executionStats = $root.google.protobuf.Struct.decode(reader, reader.uint32());
+                                    message.executionStats = $root.google.protobuf.Struct.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -96791,9 +100566,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    PlanNode.verify = function verify(message) {
+                    PlanNode.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.index != null && message.hasOwnProperty("index"))
                             if (!$util.isInteger(message.index))
                                 return "index: integer expected";
@@ -96813,23 +100592,23 @@
                             if (!Array.isArray(message.childLinks))
                                 return "childLinks: array expected";
                             for (var i = 0; i < message.childLinks.length; ++i) {
-                                var error = $root.google.spanner.v1.PlanNode.ChildLink.verify(message.childLinks[i]);
+                                var error = $root.google.spanner.v1.PlanNode.ChildLink.verify(message.childLinks[i], long + 1);
                                 if (error)
                                     return "childLinks." + error;
                             }
                         }
                         if (message.shortRepresentation != null && message.hasOwnProperty("shortRepresentation")) {
-                            var error = $root.google.spanner.v1.PlanNode.ShortRepresentation.verify(message.shortRepresentation);
+                            var error = $root.google.spanner.v1.PlanNode.ShortRepresentation.verify(message.shortRepresentation, long + 1);
                             if (error)
                                 return "shortRepresentation." + error;
                         }
                         if (message.metadata != null && message.hasOwnProperty("metadata")) {
-                            var error = $root.google.protobuf.Struct.verify(message.metadata);
+                            var error = $root.google.protobuf.Struct.verify(message.metadata, long + 1);
                             if (error)
                                 return "metadata." + error;
                         }
                         if (message.executionStats != null && message.hasOwnProperty("executionStats")) {
-                            var error = $root.google.protobuf.Struct.verify(message.executionStats);
+                            var error = $root.google.protobuf.Struct.verify(message.executionStats, long + 1);
                             if (error)
                                 return "executionStats." + error;
                         }
@@ -96844,9 +100623,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.PlanNode} PlanNode
                      */
-                    PlanNode.fromObject = function fromObject(object) {
+                    PlanNode.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.PlanNode)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.PlanNode();
                         if (object.index != null)
                             message.index = object.index | 0;
@@ -96879,23 +100662,23 @@
                             for (var i = 0; i < object.childLinks.length; ++i) {
                                 if (typeof object.childLinks[i] !== "object")
                                     throw TypeError(".google.spanner.v1.PlanNode.childLinks: object expected");
-                                message.childLinks[i] = $root.google.spanner.v1.PlanNode.ChildLink.fromObject(object.childLinks[i]);
+                                message.childLinks[i] = $root.google.spanner.v1.PlanNode.ChildLink.fromObject(object.childLinks[i], long + 1);
                             }
                         }
                         if (object.shortRepresentation != null) {
                             if (typeof object.shortRepresentation !== "object")
                                 throw TypeError(".google.spanner.v1.PlanNode.shortRepresentation: object expected");
-                            message.shortRepresentation = $root.google.spanner.v1.PlanNode.ShortRepresentation.fromObject(object.shortRepresentation);
+                            message.shortRepresentation = $root.google.spanner.v1.PlanNode.ShortRepresentation.fromObject(object.shortRepresentation, long + 1);
                         }
                         if (object.metadata != null) {
                             if (typeof object.metadata !== "object")
                                 throw TypeError(".google.spanner.v1.PlanNode.metadata: object expected");
-                            message.metadata = $root.google.protobuf.Struct.fromObject(object.metadata);
+                            message.metadata = $root.google.protobuf.Struct.fromObject(object.metadata, long + 1);
                         }
                         if (object.executionStats != null) {
                             if (typeof object.executionStats !== "object")
                                 throw TypeError(".google.spanner.v1.PlanNode.executionStats: object expected");
-                            message.executionStats = $root.google.protobuf.Struct.fromObject(object.executionStats);
+                            message.executionStats = $root.google.protobuf.Struct.fromObject(object.executionStats, long + 1);
                         }
                         return message;
                     };
@@ -97007,7 +100790,7 @@
                         function ChildLink(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -97092,9 +100875,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ChildLink.decode = function decode(reader, length, error) {
+                        ChildLink.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PlanNode.ChildLink();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -97114,7 +100901,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -97145,9 +100932,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ChildLink.verify = function verify(message) {
+                        ChildLink.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.childIndex != null && message.hasOwnProperty("childIndex"))
                                 if (!$util.isInteger(message.childIndex))
                                     return "childIndex: integer expected";
@@ -97168,9 +100959,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.PlanNode.ChildLink} ChildLink
                          */
-                        ChildLink.fromObject = function fromObject(object) {
+                        ChildLink.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.PlanNode.ChildLink)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.PlanNode.ChildLink();
                             if (object.childIndex != null)
                                 message.childIndex = object.childIndex | 0;
@@ -97259,7 +101054,7 @@
                             this.subqueries = {};
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -97335,9 +101130,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        ShortRepresentation.decode = function decode(reader, length, error) {
+                        ShortRepresentation.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.PlanNode.ShortRepresentation(), key, value;
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -97364,15 +101163,17 @@
                                                 value = reader.int32();
                                                 break;
                                             default:
-                                                reader.skipType(tag2 & 7);
+                                                reader.skipType(tag2 & 7, long);
                                                 break;
                                             }
                                         }
+                                        if (key === "__proto__")
+                                            $util.makeProp(message.subqueries, key);
                                         message.subqueries[key] = value;
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -97403,9 +101204,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        ShortRepresentation.verify = function verify(message) {
+                        ShortRepresentation.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.description != null && message.hasOwnProperty("description"))
                                 if (!$util.isString(message.description))
                                     return "description: string expected";
@@ -97428,9 +101233,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.PlanNode.ShortRepresentation} ShortRepresentation
                          */
-                        ShortRepresentation.fromObject = function fromObject(object) {
+                        ShortRepresentation.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.PlanNode.ShortRepresentation)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.PlanNode.ShortRepresentation();
                             if (object.description != null)
                                 message.description = String(object.description);
@@ -97438,8 +101247,11 @@
                                 if (typeof object.subqueries !== "object")
                                     throw TypeError(".google.spanner.v1.PlanNode.ShortRepresentation.subqueries: object expected");
                                 message.subqueries = {};
-                                for (var keys = Object.keys(object.subqueries), i = 0; i < keys.length; ++i)
+                                for (var keys = Object.keys(object.subqueries), i = 0; i < keys.length; ++i) {
+                                    if (keys[i] === "__proto__")
+                                        $util.makeProp(message.subqueries, keys[i]);
                                     message.subqueries[keys[i]] = object.subqueries[keys[i]] | 0;
+                                }
                             }
                             return message;
                         };
@@ -97466,8 +101278,11 @@
                             var keys2;
                             if (message.subqueries && (keys2 = Object.keys(message.subqueries)).length) {
                                 object.subqueries = {};
-                                for (var j = 0; j < keys2.length; ++j)
+                                for (var j = 0; j < keys2.length; ++j) {
+                                    if (keys2[j] === "__proto__")
+                                        $util.makeProp(object.subqueries, keys2[j]);
                                     object.subqueries[keys2[j]] = message.subqueries[keys2[j]];
+                                }
                             }
                             return object;
                         };
@@ -97525,7 +101340,7 @@
                         this.indexAdvice = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -97591,9 +101406,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    QueryAdvisorResult.decode = function decode(reader, length, error) {
+                    QueryAdvisorResult.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.QueryAdvisorResult();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -97603,11 +101422,11 @@
                             case 1: {
                                     if (!(message.indexAdvice && message.indexAdvice.length))
                                         message.indexAdvice = [];
-                                    message.indexAdvice.push($root.google.spanner.v1.QueryAdvisorResult.IndexAdvice.decode(reader, reader.uint32()));
+                                    message.indexAdvice.push($root.google.spanner.v1.QueryAdvisorResult.IndexAdvice.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -97638,14 +101457,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    QueryAdvisorResult.verify = function verify(message) {
+                    QueryAdvisorResult.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.indexAdvice != null && message.hasOwnProperty("indexAdvice")) {
                             if (!Array.isArray(message.indexAdvice))
                                 return "indexAdvice: array expected";
                             for (var i = 0; i < message.indexAdvice.length; ++i) {
-                                var error = $root.google.spanner.v1.QueryAdvisorResult.IndexAdvice.verify(message.indexAdvice[i]);
+                                var error = $root.google.spanner.v1.QueryAdvisorResult.IndexAdvice.verify(message.indexAdvice[i], long + 1);
                                 if (error)
                                     return "indexAdvice." + error;
                             }
@@ -97661,9 +101484,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.QueryAdvisorResult} QueryAdvisorResult
                      */
-                    QueryAdvisorResult.fromObject = function fromObject(object) {
+                    QueryAdvisorResult.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.QueryAdvisorResult)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.QueryAdvisorResult();
                         if (object.indexAdvice) {
                             if (!Array.isArray(object.indexAdvice))
@@ -97672,7 +101499,7 @@
                             for (var i = 0; i < object.indexAdvice.length; ++i) {
                                 if (typeof object.indexAdvice[i] !== "object")
                                     throw TypeError(".google.spanner.v1.QueryAdvisorResult.indexAdvice: object expected");
-                                message.indexAdvice[i] = $root.google.spanner.v1.QueryAdvisorResult.IndexAdvice.fromObject(object.indexAdvice[i]);
+                                message.indexAdvice[i] = $root.google.spanner.v1.QueryAdvisorResult.IndexAdvice.fromObject(object.indexAdvice[i], long + 1);
                             }
                         }
                         return message;
@@ -97749,7 +101576,7 @@
                             this.ddl = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -97825,9 +101652,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        IndexAdvice.decode = function decode(reader, length, error) {
+                        IndexAdvice.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.QueryAdvisorResult.IndexAdvice();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -97845,7 +101676,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -97876,9 +101707,13 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        IndexAdvice.verify = function verify(message) {
+                        IndexAdvice.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.ddl != null && message.hasOwnProperty("ddl")) {
                                 if (!Array.isArray(message.ddl))
                                     return "ddl: array expected";
@@ -97900,9 +101735,13 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.QueryAdvisorResult.IndexAdvice} IndexAdvice
                          */
-                        IndexAdvice.fromObject = function fromObject(object) {
+                        IndexAdvice.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.QueryAdvisorResult.IndexAdvice)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.QueryAdvisorResult.IndexAdvice();
                             if (object.ddl) {
                                 if (!Array.isArray(object.ddl))
@@ -97997,7 +101836,7 @@
                         this.planNodes = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -98073,9 +101912,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    QueryPlan.decode = function decode(reader, length, error) {
+                    QueryPlan.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.QueryPlan();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -98085,15 +101928,15 @@
                             case 1: {
                                     if (!(message.planNodes && message.planNodes.length))
                                         message.planNodes = [];
-                                    message.planNodes.push($root.google.spanner.v1.PlanNode.decode(reader, reader.uint32()));
+                                    message.planNodes.push($root.google.spanner.v1.PlanNode.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 2: {
-                                    message.queryAdvice = $root.google.spanner.v1.QueryAdvisorResult.decode(reader, reader.uint32());
+                                    message.queryAdvice = $root.google.spanner.v1.QueryAdvisorResult.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -98124,20 +101967,24 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    QueryPlan.verify = function verify(message) {
+                    QueryPlan.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.planNodes != null && message.hasOwnProperty("planNodes")) {
                             if (!Array.isArray(message.planNodes))
                                 return "planNodes: array expected";
                             for (var i = 0; i < message.planNodes.length; ++i) {
-                                var error = $root.google.spanner.v1.PlanNode.verify(message.planNodes[i]);
+                                var error = $root.google.spanner.v1.PlanNode.verify(message.planNodes[i], long + 1);
                                 if (error)
                                     return "planNodes." + error;
                             }
                         }
                         if (message.queryAdvice != null && message.hasOwnProperty("queryAdvice")) {
-                            var error = $root.google.spanner.v1.QueryAdvisorResult.verify(message.queryAdvice);
+                            var error = $root.google.spanner.v1.QueryAdvisorResult.verify(message.queryAdvice, long + 1);
                             if (error)
                                 return "queryAdvice." + error;
                         }
@@ -98152,9 +101999,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.QueryPlan} QueryPlan
                      */
-                    QueryPlan.fromObject = function fromObject(object) {
+                    QueryPlan.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.QueryPlan)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.QueryPlan();
                         if (object.planNodes) {
                             if (!Array.isArray(object.planNodes))
@@ -98163,13 +102014,13 @@
                             for (var i = 0; i < object.planNodes.length; ++i) {
                                 if (typeof object.planNodes[i] !== "object")
                                     throw TypeError(".google.spanner.v1.QueryPlan.planNodes: object expected");
-                                message.planNodes[i] = $root.google.spanner.v1.PlanNode.fromObject(object.planNodes[i]);
+                                message.planNodes[i] = $root.google.spanner.v1.PlanNode.fromObject(object.planNodes[i], long + 1);
                             }
                         }
                         if (object.queryAdvice != null) {
                             if (typeof object.queryAdvice !== "object")
                                 throw TypeError(".google.spanner.v1.QueryPlan.queryAdvice: object expected");
-                            message.queryAdvice = $root.google.spanner.v1.QueryAdvisorResult.fromObject(object.queryAdvice);
+                            message.queryAdvice = $root.google.spanner.v1.QueryAdvisorResult.fromObject(object.queryAdvice, long + 1);
                         }
                         return message;
                     };
@@ -98254,7 +102105,7 @@
                     function ChangeStreamRecord(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -98373,9 +102224,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ChangeStreamRecord.decode = function decode(reader, length, error) {
+                    ChangeStreamRecord.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -98383,27 +102238,27 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.dataChangeRecord = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.decode(reader, reader.uint32());
+                                    message.dataChangeRecord = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
-                                    message.heartbeatRecord = $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord.decode(reader, reader.uint32());
+                                    message.heartbeatRecord = $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.partitionStartRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord.decode(reader, reader.uint32());
+                                    message.partitionStartRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
-                                    message.partitionEndRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord.decode(reader, reader.uint32());
+                                    message.partitionEndRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 5: {
-                                    message.partitionEventRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.decode(reader, reader.uint32());
+                                    message.partitionEventRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -98434,14 +102289,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ChangeStreamRecord.verify = function verify(message) {
+                    ChangeStreamRecord.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         var properties = {};
                         if (message.dataChangeRecord != null && message.hasOwnProperty("dataChangeRecord")) {
                             properties.record = 1;
                             {
-                                var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.verify(message.dataChangeRecord);
+                                var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.verify(message.dataChangeRecord, long + 1);
                                 if (error)
                                     return "dataChangeRecord." + error;
                             }
@@ -98451,7 +102310,7 @@
                                 return "record: multiple values";
                             properties.record = 1;
                             {
-                                var error = $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord.verify(message.heartbeatRecord);
+                                var error = $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord.verify(message.heartbeatRecord, long + 1);
                                 if (error)
                                     return "heartbeatRecord." + error;
                             }
@@ -98461,7 +102320,7 @@
                                 return "record: multiple values";
                             properties.record = 1;
                             {
-                                var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord.verify(message.partitionStartRecord);
+                                var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord.verify(message.partitionStartRecord, long + 1);
                                 if (error)
                                     return "partitionStartRecord." + error;
                             }
@@ -98471,7 +102330,7 @@
                                 return "record: multiple values";
                             properties.record = 1;
                             {
-                                var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord.verify(message.partitionEndRecord);
+                                var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord.verify(message.partitionEndRecord, long + 1);
                                 if (error)
                                     return "partitionEndRecord." + error;
                             }
@@ -98481,7 +102340,7 @@
                                 return "record: multiple values";
                             properties.record = 1;
                             {
-                                var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.verify(message.partitionEventRecord);
+                                var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.verify(message.partitionEventRecord, long + 1);
                                 if (error)
                                     return "partitionEventRecord." + error;
                             }
@@ -98497,34 +102356,38 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.spanner.v1.ChangeStreamRecord} ChangeStreamRecord
                      */
-                    ChangeStreamRecord.fromObject = function fromObject(object) {
+                    ChangeStreamRecord.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.spanner.v1.ChangeStreamRecord)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.spanner.v1.ChangeStreamRecord();
                         if (object.dataChangeRecord != null) {
                             if (typeof object.dataChangeRecord !== "object")
                                 throw TypeError(".google.spanner.v1.ChangeStreamRecord.dataChangeRecord: object expected");
-                            message.dataChangeRecord = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.fromObject(object.dataChangeRecord);
+                            message.dataChangeRecord = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.fromObject(object.dataChangeRecord, long + 1);
                         }
                         if (object.heartbeatRecord != null) {
                             if (typeof object.heartbeatRecord !== "object")
                                 throw TypeError(".google.spanner.v1.ChangeStreamRecord.heartbeatRecord: object expected");
-                            message.heartbeatRecord = $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord.fromObject(object.heartbeatRecord);
+                            message.heartbeatRecord = $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord.fromObject(object.heartbeatRecord, long + 1);
                         }
                         if (object.partitionStartRecord != null) {
                             if (typeof object.partitionStartRecord !== "object")
                                 throw TypeError(".google.spanner.v1.ChangeStreamRecord.partitionStartRecord: object expected");
-                            message.partitionStartRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord.fromObject(object.partitionStartRecord);
+                            message.partitionStartRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord.fromObject(object.partitionStartRecord, long + 1);
                         }
                         if (object.partitionEndRecord != null) {
                             if (typeof object.partitionEndRecord !== "object")
                                 throw TypeError(".google.spanner.v1.ChangeStreamRecord.partitionEndRecord: object expected");
-                            message.partitionEndRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord.fromObject(object.partitionEndRecord);
+                            message.partitionEndRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord.fromObject(object.partitionEndRecord, long + 1);
                         }
                         if (object.partitionEventRecord != null) {
                             if (typeof object.partitionEventRecord !== "object")
                                 throw TypeError(".google.spanner.v1.ChangeStreamRecord.partitionEventRecord: object expected");
-                            message.partitionEventRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.fromObject(object.partitionEventRecord);
+                            message.partitionEventRecord = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.fromObject(object.partitionEventRecord, long + 1);
                         }
                         return message;
                     };
@@ -98630,7 +102493,7 @@
                             this.mods = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -98817,9 +102680,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        DataChangeRecord.decode = function decode(reader, length, error) {
+                        DataChangeRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -98827,7 +102694,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -98849,13 +102716,13 @@
                                 case 6: {
                                         if (!(message.columnMetadata && message.columnMetadata.length))
                                             message.columnMetadata = [];
-                                        message.columnMetadata.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata.decode(reader, reader.uint32()));
+                                        message.columnMetadata.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 7: {
                                         if (!(message.mods && message.mods.length))
                                             message.mods = [];
-                                        message.mods.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.decode(reader, reader.uint32()));
+                                        message.mods.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 8: {
@@ -98883,7 +102750,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -98914,11 +102781,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        DataChangeRecord.verify = function verify(message) {
+                        DataChangeRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.commitTimestamp != null && message.hasOwnProperty("commitTimestamp")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp);
+                                var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp, long + 1);
                                 if (error)
                                     return "commitTimestamp." + error;
                             }
@@ -98938,7 +102809,7 @@
                                 if (!Array.isArray(message.columnMetadata))
                                     return "columnMetadata: array expected";
                                 for (var i = 0; i < message.columnMetadata.length; ++i) {
-                                    var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata.verify(message.columnMetadata[i]);
+                                    var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata.verify(message.columnMetadata[i], long + 1);
                                     if (error)
                                         return "columnMetadata." + error;
                                 }
@@ -98947,7 +102818,7 @@
                                 if (!Array.isArray(message.mods))
                                     return "mods: array expected";
                                 for (var i = 0; i < message.mods.length; ++i) {
-                                    var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.verify(message.mods[i]);
+                                    var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.verify(message.mods[i], long + 1);
                                     if (error)
                                         return "mods." + error;
                                 }
@@ -98996,14 +102867,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.ChangeStreamRecord.DataChangeRecord} DataChangeRecord
                          */
-                        DataChangeRecord.fromObject = function fromObject(object) {
+                        DataChangeRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord();
                             if (object.commitTimestamp != null) {
                                 if (typeof object.commitTimestamp !== "object")
                                     throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.commitTimestamp: object expected");
-                                message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp);
+                                message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp, long + 1);
                             }
                             if (object.recordSequence != null)
                                 message.recordSequence = String(object.recordSequence);
@@ -99020,7 +102895,7 @@
                                 for (var i = 0; i < object.columnMetadata.length; ++i) {
                                     if (typeof object.columnMetadata[i] !== "object")
                                         throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.columnMetadata: object expected");
-                                    message.columnMetadata[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata.fromObject(object.columnMetadata[i]);
+                                    message.columnMetadata[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata.fromObject(object.columnMetadata[i], long + 1);
                                 }
                             }
                             if (object.mods) {
@@ -99030,7 +102905,7 @@
                                 for (var i = 0; i < object.mods.length; ++i) {
                                     if (typeof object.mods[i] !== "object")
                                         throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.mods: object expected");
-                                    message.mods[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.fromObject(object.mods[i]);
+                                    message.mods[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.fromObject(object.mods[i], long + 1);
                                 }
                             }
                             switch (object.modType) {
@@ -99210,7 +103085,7 @@
                             function ColumnMetadata(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -99305,9 +103180,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ColumnMetadata.decode = function decode(reader, length, error) {
+                            ColumnMetadata.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -99319,7 +103198,7 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32());
+                                            message.type = $root.google.spanner.v1.Type.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     case 3: {
@@ -99331,7 +103210,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -99362,14 +103241,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ColumnMetadata.verify = function verify(message) {
+                            ColumnMetadata.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.name != null && message.hasOwnProperty("name"))
                                     if (!$util.isString(message.name))
                                         return "name: string expected";
                                 if (message.type != null && message.hasOwnProperty("type")) {
-                                    var error = $root.google.spanner.v1.Type.verify(message.type);
+                                    var error = $root.google.spanner.v1.Type.verify(message.type, long + 1);
                                     if (error)
                                         return "type." + error;
                                 }
@@ -99390,16 +103273,20 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata} ColumnMetadata
                              */
-                            ColumnMetadata.fromObject = function fromObject(object) {
+                            ColumnMetadata.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata();
                                 if (object.name != null)
                                     message.name = String(object.name);
                                 if (object.type != null) {
                                     if (typeof object.type !== "object")
                                         throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ColumnMetadata.type: object expected");
-                                    message.type = $root.google.spanner.v1.Type.fromObject(object.type);
+                                    message.type = $root.google.spanner.v1.Type.fromObject(object.type, long + 1);
                                 }
                                 if (object.isPrimaryKey != null)
                                     message.isPrimaryKey = Boolean(object.isPrimaryKey);
@@ -99502,7 +103389,7 @@
                             function ModValue(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -99577,9 +103464,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            ModValue.decode = function decode(reader, length, error) {
+                            ModValue.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -99591,11 +103482,11 @@
                                             break;
                                         }
                                     case 2: {
-                                            message.value = $root.google.protobuf.Value.decode(reader, reader.uint32());
+                                            message.value = $root.google.protobuf.Value.decode(reader, reader.uint32(), undefined, long + 1);
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -99626,14 +103517,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            ModValue.verify = function verify(message) {
+                            ModValue.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.columnMetadataIndex != null && message.hasOwnProperty("columnMetadataIndex"))
                                     if (!$util.isInteger(message.columnMetadataIndex))
                                         return "columnMetadataIndex: integer expected";
                                 if (message.value != null && message.hasOwnProperty("value")) {
-                                    var error = $root.google.protobuf.Value.verify(message.value);
+                                    var error = $root.google.protobuf.Value.verify(message.value, long + 1);
                                     if (error)
                                         return "value." + error;
                                 }
@@ -99648,16 +103543,20 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue} ModValue
                              */
-                            ModValue.fromObject = function fromObject(object) {
+                            ModValue.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue();
                                 if (object.columnMetadataIndex != null)
                                     message.columnMetadataIndex = object.columnMetadataIndex | 0;
                                 if (object.value != null) {
                                     if (typeof object.value !== "object")
                                         throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.value: object expected");
-                                    message.value = $root.google.protobuf.Value.fromObject(object.value);
+                                    message.value = $root.google.protobuf.Value.fromObject(object.value, long + 1);
                                 }
                                 return message;
                             };
@@ -99740,7 +103639,7 @@
                                 this.newValues = [];
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -99828,9 +103727,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            Mod.decode = function decode(reader, length, error) {
+                            Mod.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -99840,23 +103743,23 @@
                                     case 1: {
                                             if (!(message.keys && message.keys.length))
                                                 message.keys = [];
-                                            message.keys.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.decode(reader, reader.uint32()));
+                                            message.keys.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 2: {
                                             if (!(message.oldValues && message.oldValues.length))
                                                 message.oldValues = [];
-                                            message.oldValues.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.decode(reader, reader.uint32()));
+                                            message.oldValues.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     case 3: {
                                             if (!(message.newValues && message.newValues.length))
                                                 message.newValues = [];
-                                            message.newValues.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.decode(reader, reader.uint32()));
+                                            message.newValues.push($root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.decode(reader, reader.uint32(), undefined, long + 1));
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -99887,14 +103790,18 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            Mod.verify = function verify(message) {
+                            Mod.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.keys != null && message.hasOwnProperty("keys")) {
                                     if (!Array.isArray(message.keys))
                                         return "keys: array expected";
                                     for (var i = 0; i < message.keys.length; ++i) {
-                                        var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.verify(message.keys[i]);
+                                        var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.verify(message.keys[i], long + 1);
                                         if (error)
                                             return "keys." + error;
                                     }
@@ -99903,7 +103810,7 @@
                                     if (!Array.isArray(message.oldValues))
                                         return "oldValues: array expected";
                                     for (var i = 0; i < message.oldValues.length; ++i) {
-                                        var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.verify(message.oldValues[i]);
+                                        var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.verify(message.oldValues[i], long + 1);
                                         if (error)
                                             return "oldValues." + error;
                                     }
@@ -99912,7 +103819,7 @@
                                     if (!Array.isArray(message.newValues))
                                         return "newValues: array expected";
                                     for (var i = 0; i < message.newValues.length; ++i) {
-                                        var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.verify(message.newValues[i]);
+                                        var error = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.verify(message.newValues[i], long + 1);
                                         if (error)
                                             return "newValues." + error;
                                     }
@@ -99928,9 +103835,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod} Mod
                              */
-                            Mod.fromObject = function fromObject(object) {
+                            Mod.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod();
                                 if (object.keys) {
                                     if (!Array.isArray(object.keys))
@@ -99939,7 +103850,7 @@
                                     for (var i = 0; i < object.keys.length; ++i) {
                                         if (typeof object.keys[i] !== "object")
                                             throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.keys: object expected");
-                                        message.keys[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.fromObject(object.keys[i]);
+                                        message.keys[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.fromObject(object.keys[i], long + 1);
                                     }
                                 }
                                 if (object.oldValues) {
@@ -99949,7 +103860,7 @@
                                     for (var i = 0; i < object.oldValues.length; ++i) {
                                         if (typeof object.oldValues[i] !== "object")
                                             throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.oldValues: object expected");
-                                        message.oldValues[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.fromObject(object.oldValues[i]);
+                                        message.oldValues[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.fromObject(object.oldValues[i], long + 1);
                                     }
                                 }
                                 if (object.newValues) {
@@ -99959,7 +103870,7 @@
                                     for (var i = 0; i < object.newValues.length; ++i) {
                                         if (typeof object.newValues[i] !== "object")
                                             throw TypeError(".google.spanner.v1.ChangeStreamRecord.DataChangeRecord.Mod.newValues: object expected");
-                                        message.newValues[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.fromObject(object.newValues[i]);
+                                        message.newValues[i] = $root.google.spanner.v1.ChangeStreamRecord.DataChangeRecord.ModValue.fromObject(object.newValues[i], long + 1);
                                     }
                                 }
                                 return message;
@@ -100091,7 +104002,7 @@
                         function HeartbeatRecord(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -100156,9 +104067,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        HeartbeatRecord.decode = function decode(reader, length, error) {
+                        HeartbeatRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -100166,11 +104081,11 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.timestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.timestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -100201,11 +104116,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        HeartbeatRecord.verify = function verify(message) {
+                        HeartbeatRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.timestamp != null && message.hasOwnProperty("timestamp")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.timestamp);
+                                var error = $root.google.protobuf.Timestamp.verify(message.timestamp, long + 1);
                                 if (error)
                                     return "timestamp." + error;
                             }
@@ -100220,14 +104139,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.ChangeStreamRecord.HeartbeatRecord} HeartbeatRecord
                          */
-                        HeartbeatRecord.fromObject = function fromObject(object) {
+                        HeartbeatRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.ChangeStreamRecord.HeartbeatRecord();
                             if (object.timestamp != null) {
                                 if (typeof object.timestamp !== "object")
                                     throw TypeError(".google.spanner.v1.ChangeStreamRecord.HeartbeatRecord.timestamp: object expected");
-                                message.timestamp = $root.google.protobuf.Timestamp.fromObject(object.timestamp);
+                                message.timestamp = $root.google.protobuf.Timestamp.fromObject(object.timestamp, long + 1);
                             }
                             return message;
                         };
@@ -100304,7 +104227,7 @@
                             this.partitionTokens = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -100390,9 +104313,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        PartitionStartRecord.decode = function decode(reader, length, error) {
+                        PartitionStartRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -100400,7 +104327,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.startTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.startTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -100414,7 +104341,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -100445,11 +104372,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        PartitionStartRecord.verify = function verify(message) {
+                        PartitionStartRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.startTimestamp != null && message.hasOwnProperty("startTimestamp")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.startTimestamp);
+                                var error = $root.google.protobuf.Timestamp.verify(message.startTimestamp, long + 1);
                                 if (error)
                                     return "startTimestamp." + error;
                             }
@@ -100474,14 +104405,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.ChangeStreamRecord.PartitionStartRecord} PartitionStartRecord
                          */
-                        PartitionStartRecord.fromObject = function fromObject(object) {
+                        PartitionStartRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionStartRecord();
                             if (object.startTimestamp != null) {
                                 if (typeof object.startTimestamp !== "object")
                                     throw TypeError(".google.spanner.v1.ChangeStreamRecord.PartitionStartRecord.startTimestamp: object expected");
-                                message.startTimestamp = $root.google.protobuf.Timestamp.fromObject(object.startTimestamp);
+                                message.startTimestamp = $root.google.protobuf.Timestamp.fromObject(object.startTimestamp, long + 1);
                             }
                             if (object.recordSequence != null)
                                 message.recordSequence = String(object.recordSequence);
@@ -100577,7 +104512,7 @@
                         function PartitionEndRecord(properties) {
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -100662,9 +104597,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        PartitionEndRecord.decode = function decode(reader, length, error) {
+                        PartitionEndRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -100672,7 +104611,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.endTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.endTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -100684,7 +104623,7 @@
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -100715,11 +104654,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        PartitionEndRecord.verify = function verify(message) {
+                        PartitionEndRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.endTimestamp != null && message.hasOwnProperty("endTimestamp")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.endTimestamp);
+                                var error = $root.google.protobuf.Timestamp.verify(message.endTimestamp, long + 1);
                                 if (error)
                                     return "endTimestamp." + error;
                             }
@@ -100740,14 +104683,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.ChangeStreamRecord.PartitionEndRecord} PartitionEndRecord
                          */
-                        PartitionEndRecord.fromObject = function fromObject(object) {
+                        PartitionEndRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEndRecord();
                             if (object.endTimestamp != null) {
                                 if (typeof object.endTimestamp !== "object")
                                     throw TypeError(".google.spanner.v1.ChangeStreamRecord.PartitionEndRecord.endTimestamp: object expected");
-                                message.endTimestamp = $root.google.protobuf.Timestamp.fromObject(object.endTimestamp);
+                                message.endTimestamp = $root.google.protobuf.Timestamp.fromObject(object.endTimestamp, long + 1);
                             }
                             if (object.recordSequence != null)
                                 message.recordSequence = String(object.recordSequence);
@@ -100838,7 +104785,7 @@
                             this.moveOutEvents = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                    if (properties[keys[i]] != null)
+                                    if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                         this[keys[i]] = properties[keys[i]];
                         }
     
@@ -100945,9 +104892,13 @@
                          * @throws {Error} If the payload is not a reader or valid buffer
                          * @throws {$protobuf.util.ProtocolError} If required fields are missing
                          */
-                        PartitionEventRecord.decode = function decode(reader, length, error) {
+                        PartitionEventRecord.decode = function decode(reader, length, error, long) {
                             if (!(reader instanceof $Reader))
                                 reader = $Reader.create(reader);
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $Reader.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord();
                             while (reader.pos < end) {
                                 var tag = reader.uint32();
@@ -100955,7 +104906,7 @@
                                     break;
                                 switch (tag >>> 3) {
                                 case 1: {
-                                        message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                        message.commitTimestamp = $root.google.protobuf.Timestamp.decode(reader, reader.uint32(), undefined, long + 1);
                                         break;
                                     }
                                 case 2: {
@@ -100969,17 +104920,17 @@
                                 case 4: {
                                         if (!(message.moveInEvents && message.moveInEvents.length))
                                             message.moveInEvents = [];
-                                        message.moveInEvents.push($root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent.decode(reader, reader.uint32()));
+                                        message.moveInEvents.push($root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 case 5: {
                                         if (!(message.moveOutEvents && message.moveOutEvents.length))
                                             message.moveOutEvents = [];
-                                        message.moveOutEvents.push($root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent.decode(reader, reader.uint32()));
+                                        message.moveOutEvents.push($root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent.decode(reader, reader.uint32(), undefined, long + 1));
                                         break;
                                     }
                                 default:
-                                    reader.skipType(tag & 7);
+                                    reader.skipType(tag & 7, long);
                                     break;
                                 }
                             }
@@ -101010,11 +104961,15 @@
                          * @param {Object.<string,*>} message Plain object to verify
                          * @returns {string|null} `null` if valid, otherwise the reason why it is not
                          */
-                        PartitionEventRecord.verify = function verify(message) {
+                        PartitionEventRecord.verify = function verify(message, long) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                return "maximum nesting depth exceeded";
                             if (message.commitTimestamp != null && message.hasOwnProperty("commitTimestamp")) {
-                                var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp);
+                                var error = $root.google.protobuf.Timestamp.verify(message.commitTimestamp, long + 1);
                                 if (error)
                                     return "commitTimestamp." + error;
                             }
@@ -101028,7 +104983,7 @@
                                 if (!Array.isArray(message.moveInEvents))
                                     return "moveInEvents: array expected";
                                 for (var i = 0; i < message.moveInEvents.length; ++i) {
-                                    var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent.verify(message.moveInEvents[i]);
+                                    var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent.verify(message.moveInEvents[i], long + 1);
                                     if (error)
                                         return "moveInEvents." + error;
                                 }
@@ -101037,7 +104992,7 @@
                                 if (!Array.isArray(message.moveOutEvents))
                                     return "moveOutEvents: array expected";
                                 for (var i = 0; i < message.moveOutEvents.length; ++i) {
-                                    var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent.verify(message.moveOutEvents[i]);
+                                    var error = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent.verify(message.moveOutEvents[i], long + 1);
                                     if (error)
                                         return "moveOutEvents." + error;
                                 }
@@ -101053,14 +105008,18 @@
                          * @param {Object.<string,*>} object Plain object
                          * @returns {google.spanner.v1.ChangeStreamRecord.PartitionEventRecord} PartitionEventRecord
                          */
-                        PartitionEventRecord.fromObject = function fromObject(object) {
+                        PartitionEventRecord.fromObject = function fromObject(object, long) {
                             if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord)
                                 return object;
+                            if (long === undefined)
+                                long = 0;
+                            if (long > $util.recursionLimit)
+                                throw Error("maximum nesting depth exceeded");
                             var message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord();
                             if (object.commitTimestamp != null) {
                                 if (typeof object.commitTimestamp !== "object")
                                     throw TypeError(".google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.commitTimestamp: object expected");
-                                message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp);
+                                message.commitTimestamp = $root.google.protobuf.Timestamp.fromObject(object.commitTimestamp, long + 1);
                             }
                             if (object.recordSequence != null)
                                 message.recordSequence = String(object.recordSequence);
@@ -101073,7 +105032,7 @@
                                 for (var i = 0; i < object.moveInEvents.length; ++i) {
                                     if (typeof object.moveInEvents[i] !== "object")
                                         throw TypeError(".google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.moveInEvents: object expected");
-                                    message.moveInEvents[i] = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent.fromObject(object.moveInEvents[i]);
+                                    message.moveInEvents[i] = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent.fromObject(object.moveInEvents[i], long + 1);
                                 }
                             }
                             if (object.moveOutEvents) {
@@ -101083,7 +105042,7 @@
                                 for (var i = 0; i < object.moveOutEvents.length; ++i) {
                                     if (typeof object.moveOutEvents[i] !== "object")
                                         throw TypeError(".google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.moveOutEvents: object expected");
-                                    message.moveOutEvents[i] = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent.fromObject(object.moveOutEvents[i]);
+                                    message.moveOutEvents[i] = $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent.fromObject(object.moveOutEvents[i], long + 1);
                                 }
                             }
                             return message;
@@ -101176,7 +105135,7 @@
                             function MoveInEvent(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -101241,9 +105200,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            MoveInEvent.decode = function decode(reader, length, error) {
+                            MoveInEvent.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -101255,7 +105218,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -101286,9 +105249,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            MoveInEvent.verify = function verify(message) {
+                            MoveInEvent.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.sourcePartitionToken != null && message.hasOwnProperty("sourcePartitionToken"))
                                     if (!$util.isString(message.sourcePartitionToken))
                                         return "sourcePartitionToken: string expected";
@@ -101303,9 +105270,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent} MoveInEvent
                              */
-                            MoveInEvent.fromObject = function fromObject(object) {
+                            MoveInEvent.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveInEvent();
                                 if (object.sourcePartitionToken != null)
                                     message.sourcePartitionToken = String(object.sourcePartitionToken);
@@ -101381,7 +105352,7 @@
                             function MoveOutEvent(properties) {
                                 if (properties)
                                     for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                        if (properties[keys[i]] != null)
+                                        if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                             this[keys[i]] = properties[keys[i]];
                             }
     
@@ -101446,9 +105417,13 @@
                              * @throws {Error} If the payload is not a reader or valid buffer
                              * @throws {$protobuf.util.ProtocolError} If required fields are missing
                              */
-                            MoveOutEvent.decode = function decode(reader, length, error) {
+                            MoveOutEvent.decode = function decode(reader, length, error, long) {
                                 if (!(reader instanceof $Reader))
                                     reader = $Reader.create(reader);
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $Reader.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent();
                                 while (reader.pos < end) {
                                     var tag = reader.uint32();
@@ -101460,7 +105435,7 @@
                                             break;
                                         }
                                     default:
-                                        reader.skipType(tag & 7);
+                                        reader.skipType(tag & 7, long);
                                         break;
                                     }
                                 }
@@ -101491,9 +105466,13 @@
                              * @param {Object.<string,*>} message Plain object to verify
                              * @returns {string|null} `null` if valid, otherwise the reason why it is not
                              */
-                            MoveOutEvent.verify = function verify(message) {
+                            MoveOutEvent.verify = function verify(message, long) {
                                 if (typeof message !== "object" || message === null)
                                     return "object expected";
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    return "maximum nesting depth exceeded";
                                 if (message.destinationPartitionToken != null && message.hasOwnProperty("destinationPartitionToken"))
                                     if (!$util.isString(message.destinationPartitionToken))
                                         return "destinationPartitionToken: string expected";
@@ -101508,9 +105487,13 @@
                              * @param {Object.<string,*>} object Plain object
                              * @returns {google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent} MoveOutEvent
                              */
-                            MoveOutEvent.fromObject = function fromObject(object) {
+                            MoveOutEvent.fromObject = function fromObject(object, long) {
                                 if (object instanceof $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent)
                                     return object;
+                                if (long === undefined)
+                                    long = 0;
+                                if (long > $util.recursionLimit)
+                                    throw Error("maximum nesting depth exceeded");
                                 var message = new $root.google.spanner.v1.ChangeStreamRecord.PartitionEventRecord.MoveOutEvent();
                                 if (object.destinationPartitionToken != null)
                                     message.destinationPartitionToken = String(object.destinationPartitionToken);
@@ -101643,7 +105626,7 @@
                     this.style = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -101773,9 +105756,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ResourceDescriptor.decode = function decode(reader, length, error) {
+                ResourceDescriptor.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.ResourceDescriptor();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -101820,7 +105807,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -101851,9 +105838,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ResourceDescriptor.verify = function verify(message) {
+                ResourceDescriptor.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.type != null && message.hasOwnProperty("type"))
                         if (!$util.isString(message.type))
                             return "type: string expected";
@@ -101905,9 +105896,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.ResourceDescriptor} ResourceDescriptor
                  */
-                ResourceDescriptor.fromObject = function fromObject(object) {
+                ResourceDescriptor.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.ResourceDescriptor)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.ResourceDescriptor();
                     if (object.type != null)
                         message.type = String(object.type);
@@ -102095,7 +106090,7 @@
                 function ResourceReference(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -102170,9 +106165,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ResourceReference.decode = function decode(reader, length, error) {
+                ResourceReference.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.ResourceReference();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -102188,7 +106187,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -102219,9 +106218,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ResourceReference.verify = function verify(message) {
+                ResourceReference.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.type != null && message.hasOwnProperty("type"))
                         if (!$util.isString(message.type))
                             return "type: string expected";
@@ -102239,9 +106242,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.ResourceReference} ResourceReference
                  */
-                ResourceReference.fromObject = function fromObject(object) {
+                ResourceReference.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.ResourceReference)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.ResourceReference();
                     if (object.type != null)
                         message.type = String(object.type);
@@ -102325,7 +106332,7 @@
                     this.rules = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -102401,9 +106408,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Http.decode = function decode(reader, length, error) {
+                Http.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.Http();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -102413,7 +106424,7 @@
                         case 1: {
                                 if (!(message.rules && message.rules.length))
                                     message.rules = [];
-                                message.rules.push($root.google.api.HttpRule.decode(reader, reader.uint32()));
+                                message.rules.push($root.google.api.HttpRule.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 2: {
@@ -102421,7 +106432,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -102452,14 +106463,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Http.verify = function verify(message) {
+                Http.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.rules != null && message.hasOwnProperty("rules")) {
                         if (!Array.isArray(message.rules))
                             return "rules: array expected";
                         for (var i = 0; i < message.rules.length; ++i) {
-                            var error = $root.google.api.HttpRule.verify(message.rules[i]);
+                            var error = $root.google.api.HttpRule.verify(message.rules[i], long + 1);
                             if (error)
                                 return "rules." + error;
                         }
@@ -102478,9 +106493,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.Http} Http
                  */
-                Http.fromObject = function fromObject(object) {
+                Http.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.Http)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.Http();
                     if (object.rules) {
                         if (!Array.isArray(object.rules))
@@ -102489,7 +106508,7 @@
                         for (var i = 0; i < object.rules.length; ++i) {
                             if (typeof object.rules[i] !== "object")
                                 throw TypeError(".google.api.Http.rules: object expected");
-                            message.rules[i] = $root.google.api.HttpRule.fromObject(object.rules[i]);
+                            message.rules[i] = $root.google.api.HttpRule.fromObject(object.rules[i], long + 1);
                         }
                     }
                     if (object.fullyDecodeReservedExpansion != null)
@@ -102583,7 +106602,7 @@
                     this.additionalBindings = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -102753,9 +106772,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                HttpRule.decode = function decode(reader, length, error) {
+                HttpRule.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.HttpRule();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -102787,7 +106810,7 @@
                                 break;
                             }
                         case 8: {
-                                message.custom = $root.google.api.CustomHttpPattern.decode(reader, reader.uint32());
+                                message.custom = $root.google.api.CustomHttpPattern.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 7: {
@@ -102801,11 +106824,11 @@
                         case 11: {
                                 if (!(message.additionalBindings && message.additionalBindings.length))
                                     message.additionalBindings = [];
-                                message.additionalBindings.push($root.google.api.HttpRule.decode(reader, reader.uint32()));
+                                message.additionalBindings.push($root.google.api.HttpRule.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -102836,9 +106859,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                HttpRule.verify = function verify(message) {
+                HttpRule.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     var properties = {};
                     if (message.selector != null && message.hasOwnProperty("selector"))
                         if (!$util.isString(message.selector))
@@ -102881,7 +106908,7 @@
                             return "pattern: multiple values";
                         properties.pattern = 1;
                         {
-                            var error = $root.google.api.CustomHttpPattern.verify(message.custom);
+                            var error = $root.google.api.CustomHttpPattern.verify(message.custom, long + 1);
                             if (error)
                                 return "custom." + error;
                         }
@@ -102896,7 +106923,7 @@
                         if (!Array.isArray(message.additionalBindings))
                             return "additionalBindings: array expected";
                         for (var i = 0; i < message.additionalBindings.length; ++i) {
-                            var error = $root.google.api.HttpRule.verify(message.additionalBindings[i]);
+                            var error = $root.google.api.HttpRule.verify(message.additionalBindings[i], long + 1);
                             if (error)
                                 return "additionalBindings." + error;
                         }
@@ -102912,9 +106939,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.HttpRule} HttpRule
                  */
-                HttpRule.fromObject = function fromObject(object) {
+                HttpRule.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.HttpRule)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.HttpRule();
                     if (object.selector != null)
                         message.selector = String(object.selector);
@@ -102931,7 +106962,7 @@
                     if (object.custom != null) {
                         if (typeof object.custom !== "object")
                             throw TypeError(".google.api.HttpRule.custom: object expected");
-                        message.custom = $root.google.api.CustomHttpPattern.fromObject(object.custom);
+                        message.custom = $root.google.api.CustomHttpPattern.fromObject(object.custom, long + 1);
                     }
                     if (object.body != null)
                         message.body = String(object.body);
@@ -102944,7 +106975,7 @@
                         for (var i = 0; i < object.additionalBindings.length; ++i) {
                             if (typeof object.additionalBindings[i] !== "object")
                                 throw TypeError(".google.api.HttpRule.additionalBindings: object expected");
-                            message.additionalBindings[i] = $root.google.api.HttpRule.fromObject(object.additionalBindings[i]);
+                            message.additionalBindings[i] = $root.google.api.HttpRule.fromObject(object.additionalBindings[i], long + 1);
                         }
                     }
                     return message;
@@ -103064,7 +107095,7 @@
                 function CustomHttpPattern(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -103139,9 +107170,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                CustomHttpPattern.decode = function decode(reader, length, error) {
+                CustomHttpPattern.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.CustomHttpPattern();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -103157,7 +107192,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -103188,9 +107223,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                CustomHttpPattern.verify = function verify(message) {
+                CustomHttpPattern.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.kind != null && message.hasOwnProperty("kind"))
                         if (!$util.isString(message.kind))
                             return "kind: string expected";
@@ -103208,9 +107247,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.CustomHttpPattern} CustomHttpPattern
                  */
-                CustomHttpPattern.fromObject = function fromObject(object) {
+                CustomHttpPattern.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.CustomHttpPattern)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.CustomHttpPattern();
                     if (object.kind != null)
                         message.kind = String(object.kind);
@@ -103295,7 +107338,7 @@
                     this.destinations = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -103384,9 +107427,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                CommonLanguageSettings.decode = function decode(reader, length, error) {
+                CommonLanguageSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.CommonLanguageSettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -103409,11 +107456,11 @@
                                 break;
                             }
                         case 3: {
-                                message.selectiveGapicGeneration = $root.google.api.SelectiveGapicGeneration.decode(reader, reader.uint32());
+                                message.selectiveGapicGeneration = $root.google.api.SelectiveGapicGeneration.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -103444,9 +107491,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                CommonLanguageSettings.verify = function verify(message) {
+                CommonLanguageSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.referenceDocsUri != null && message.hasOwnProperty("referenceDocsUri"))
                         if (!$util.isString(message.referenceDocsUri))
                             return "referenceDocsUri: string expected";
@@ -103464,7 +107515,7 @@
                             }
                     }
                     if (message.selectiveGapicGeneration != null && message.hasOwnProperty("selectiveGapicGeneration")) {
-                        var error = $root.google.api.SelectiveGapicGeneration.verify(message.selectiveGapicGeneration);
+                        var error = $root.google.api.SelectiveGapicGeneration.verify(message.selectiveGapicGeneration, long + 1);
                         if (error)
                             return "selectiveGapicGeneration." + error;
                     }
@@ -103479,9 +107530,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.CommonLanguageSettings} CommonLanguageSettings
                  */
-                CommonLanguageSettings.fromObject = function fromObject(object) {
+                CommonLanguageSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.CommonLanguageSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.CommonLanguageSettings();
                     if (object.referenceDocsUri != null)
                         message.referenceDocsUri = String(object.referenceDocsUri);
@@ -103513,7 +107568,7 @@
                     if (object.selectiveGapicGeneration != null) {
                         if (typeof object.selectiveGapicGeneration !== "object")
                             throw TypeError(".google.api.CommonLanguageSettings.selectiveGapicGeneration: object expected");
-                        message.selectiveGapicGeneration = $root.google.api.SelectiveGapicGeneration.fromObject(object.selectiveGapicGeneration);
+                        message.selectiveGapicGeneration = $root.google.api.SelectiveGapicGeneration.fromObject(object.selectiveGapicGeneration, long + 1);
                     }
                     return message;
                 };
@@ -103608,7 +107663,7 @@
                 function ClientLibrarySettings(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -103773,9 +107828,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ClientLibrarySettings.decode = function decode(reader, length, error) {
+                ClientLibrarySettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.ClientLibrarySettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -103795,39 +107854,39 @@
                                 break;
                             }
                         case 21: {
-                                message.javaSettings = $root.google.api.JavaSettings.decode(reader, reader.uint32());
+                                message.javaSettings = $root.google.api.JavaSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 22: {
-                                message.cppSettings = $root.google.api.CppSettings.decode(reader, reader.uint32());
+                                message.cppSettings = $root.google.api.CppSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 23: {
-                                message.phpSettings = $root.google.api.PhpSettings.decode(reader, reader.uint32());
+                                message.phpSettings = $root.google.api.PhpSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 24: {
-                                message.pythonSettings = $root.google.api.PythonSettings.decode(reader, reader.uint32());
+                                message.pythonSettings = $root.google.api.PythonSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 25: {
-                                message.nodeSettings = $root.google.api.NodeSettings.decode(reader, reader.uint32());
+                                message.nodeSettings = $root.google.api.NodeSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 26: {
-                                message.dotnetSettings = $root.google.api.DotnetSettings.decode(reader, reader.uint32());
+                                message.dotnetSettings = $root.google.api.DotnetSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 27: {
-                                message.rubySettings = $root.google.api.RubySettings.decode(reader, reader.uint32());
+                                message.rubySettings = $root.google.api.RubySettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 28: {
-                                message.goSettings = $root.google.api.GoSettings.decode(reader, reader.uint32());
+                                message.goSettings = $root.google.api.GoSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -103858,9 +107917,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ClientLibrarySettings.verify = function verify(message) {
+                ClientLibrarySettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.version != null && message.hasOwnProperty("version"))
                         if (!$util.isString(message.version))
                             return "version: string expected";
@@ -103882,42 +107945,42 @@
                         if (typeof message.restNumericEnums !== "boolean")
                             return "restNumericEnums: boolean expected";
                     if (message.javaSettings != null && message.hasOwnProperty("javaSettings")) {
-                        var error = $root.google.api.JavaSettings.verify(message.javaSettings);
+                        var error = $root.google.api.JavaSettings.verify(message.javaSettings, long + 1);
                         if (error)
                             return "javaSettings." + error;
                     }
                     if (message.cppSettings != null && message.hasOwnProperty("cppSettings")) {
-                        var error = $root.google.api.CppSettings.verify(message.cppSettings);
+                        var error = $root.google.api.CppSettings.verify(message.cppSettings, long + 1);
                         if (error)
                             return "cppSettings." + error;
                     }
                     if (message.phpSettings != null && message.hasOwnProperty("phpSettings")) {
-                        var error = $root.google.api.PhpSettings.verify(message.phpSettings);
+                        var error = $root.google.api.PhpSettings.verify(message.phpSettings, long + 1);
                         if (error)
                             return "phpSettings." + error;
                     }
                     if (message.pythonSettings != null && message.hasOwnProperty("pythonSettings")) {
-                        var error = $root.google.api.PythonSettings.verify(message.pythonSettings);
+                        var error = $root.google.api.PythonSettings.verify(message.pythonSettings, long + 1);
                         if (error)
                             return "pythonSettings." + error;
                     }
                     if (message.nodeSettings != null && message.hasOwnProperty("nodeSettings")) {
-                        var error = $root.google.api.NodeSettings.verify(message.nodeSettings);
+                        var error = $root.google.api.NodeSettings.verify(message.nodeSettings, long + 1);
                         if (error)
                             return "nodeSettings." + error;
                     }
                     if (message.dotnetSettings != null && message.hasOwnProperty("dotnetSettings")) {
-                        var error = $root.google.api.DotnetSettings.verify(message.dotnetSettings);
+                        var error = $root.google.api.DotnetSettings.verify(message.dotnetSettings, long + 1);
                         if (error)
                             return "dotnetSettings." + error;
                     }
                     if (message.rubySettings != null && message.hasOwnProperty("rubySettings")) {
-                        var error = $root.google.api.RubySettings.verify(message.rubySettings);
+                        var error = $root.google.api.RubySettings.verify(message.rubySettings, long + 1);
                         if (error)
                             return "rubySettings." + error;
                     }
                     if (message.goSettings != null && message.hasOwnProperty("goSettings")) {
-                        var error = $root.google.api.GoSettings.verify(message.goSettings);
+                        var error = $root.google.api.GoSettings.verify(message.goSettings, long + 1);
                         if (error)
                             return "goSettings." + error;
                     }
@@ -103932,9 +107995,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.ClientLibrarySettings} ClientLibrarySettings
                  */
-                ClientLibrarySettings.fromObject = function fromObject(object) {
+                ClientLibrarySettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.ClientLibrarySettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.ClientLibrarySettings();
                     if (object.version != null)
                         message.version = String(object.version);
@@ -103983,42 +108050,42 @@
                     if (object.javaSettings != null) {
                         if (typeof object.javaSettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.javaSettings: object expected");
-                        message.javaSettings = $root.google.api.JavaSettings.fromObject(object.javaSettings);
+                        message.javaSettings = $root.google.api.JavaSettings.fromObject(object.javaSettings, long + 1);
                     }
                     if (object.cppSettings != null) {
                         if (typeof object.cppSettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.cppSettings: object expected");
-                        message.cppSettings = $root.google.api.CppSettings.fromObject(object.cppSettings);
+                        message.cppSettings = $root.google.api.CppSettings.fromObject(object.cppSettings, long + 1);
                     }
                     if (object.phpSettings != null) {
                         if (typeof object.phpSettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.phpSettings: object expected");
-                        message.phpSettings = $root.google.api.PhpSettings.fromObject(object.phpSettings);
+                        message.phpSettings = $root.google.api.PhpSettings.fromObject(object.phpSettings, long + 1);
                     }
                     if (object.pythonSettings != null) {
                         if (typeof object.pythonSettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.pythonSettings: object expected");
-                        message.pythonSettings = $root.google.api.PythonSettings.fromObject(object.pythonSettings);
+                        message.pythonSettings = $root.google.api.PythonSettings.fromObject(object.pythonSettings, long + 1);
                     }
                     if (object.nodeSettings != null) {
                         if (typeof object.nodeSettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.nodeSettings: object expected");
-                        message.nodeSettings = $root.google.api.NodeSettings.fromObject(object.nodeSettings);
+                        message.nodeSettings = $root.google.api.NodeSettings.fromObject(object.nodeSettings, long + 1);
                     }
                     if (object.dotnetSettings != null) {
                         if (typeof object.dotnetSettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.dotnetSettings: object expected");
-                        message.dotnetSettings = $root.google.api.DotnetSettings.fromObject(object.dotnetSettings);
+                        message.dotnetSettings = $root.google.api.DotnetSettings.fromObject(object.dotnetSettings, long + 1);
                     }
                     if (object.rubySettings != null) {
                         if (typeof object.rubySettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.rubySettings: object expected");
-                        message.rubySettings = $root.google.api.RubySettings.fromObject(object.rubySettings);
+                        message.rubySettings = $root.google.api.RubySettings.fromObject(object.rubySettings, long + 1);
                     }
                     if (object.goSettings != null) {
                         if (typeof object.goSettings !== "object")
                             throw TypeError(".google.api.ClientLibrarySettings.goSettings: object expected");
-                        message.goSettings = $root.google.api.GoSettings.fromObject(object.goSettings);
+                        message.goSettings = $root.google.api.GoSettings.fromObject(object.goSettings, long + 1);
                     }
                     return message;
                 };
@@ -104136,7 +108203,7 @@
                     this.librarySettings = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -104304,9 +108371,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Publishing.decode = function decode(reader, length, error) {
+                Publishing.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.Publishing();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -104316,7 +108387,7 @@
                         case 2: {
                                 if (!(message.methodSettings && message.methodSettings.length))
                                     message.methodSettings = [];
-                                message.methodSettings.push($root.google.api.MethodSettings.decode(reader, reader.uint32()));
+                                message.methodSettings.push($root.google.api.MethodSettings.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 101: {
@@ -104352,7 +108423,7 @@
                         case 109: {
                                 if (!(message.librarySettings && message.librarySettings.length))
                                     message.librarySettings = [];
-                                message.librarySettings.push($root.google.api.ClientLibrarySettings.decode(reader, reader.uint32()));
+                                message.librarySettings.push($root.google.api.ClientLibrarySettings.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 110: {
@@ -104364,7 +108435,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -104395,14 +108466,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Publishing.verify = function verify(message) {
+                Publishing.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.methodSettings != null && message.hasOwnProperty("methodSettings")) {
                         if (!Array.isArray(message.methodSettings))
                             return "methodSettings: array expected";
                         for (var i = 0; i < message.methodSettings.length; ++i) {
-                            var error = $root.google.api.MethodSettings.verify(message.methodSettings[i]);
+                            var error = $root.google.api.MethodSettings.verify(message.methodSettings[i], long + 1);
                             if (error)
                                 return "methodSettings." + error;
                         }
@@ -104447,7 +108522,7 @@
                         if (!Array.isArray(message.librarySettings))
                             return "librarySettings: array expected";
                         for (var i = 0; i < message.librarySettings.length; ++i) {
-                            var error = $root.google.api.ClientLibrarySettings.verify(message.librarySettings[i]);
+                            var error = $root.google.api.ClientLibrarySettings.verify(message.librarySettings[i], long + 1);
                             if (error)
                                 return "librarySettings." + error;
                         }
@@ -104469,9 +108544,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.Publishing} Publishing
                  */
-                Publishing.fromObject = function fromObject(object) {
+                Publishing.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.Publishing)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.Publishing();
                     if (object.methodSettings) {
                         if (!Array.isArray(object.methodSettings))
@@ -104480,7 +108559,7 @@
                         for (var i = 0; i < object.methodSettings.length; ++i) {
                             if (typeof object.methodSettings[i] !== "object")
                                 throw TypeError(".google.api.Publishing.methodSettings: object expected");
-                            message.methodSettings[i] = $root.google.api.MethodSettings.fromObject(object.methodSettings[i]);
+                            message.methodSettings[i] = $root.google.api.MethodSettings.fromObject(object.methodSettings[i], long + 1);
                         }
                     }
                     if (object.newIssueUri != null)
@@ -104547,7 +108626,7 @@
                         for (var i = 0; i < object.librarySettings.length; ++i) {
                             if (typeof object.librarySettings[i] !== "object")
                                 throw TypeError(".google.api.Publishing.librarySettings: object expected");
-                            message.librarySettings[i] = $root.google.api.ClientLibrarySettings.fromObject(object.librarySettings[i]);
+                            message.librarySettings[i] = $root.google.api.ClientLibrarySettings.fromObject(object.librarySettings[i], long + 1);
                         }
                     }
                     if (object.protoReferenceDocumentationUri != null)
@@ -104671,7 +108750,7 @@
                     this.serviceClassNames = {};
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -104757,9 +108836,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                JavaSettings.decode = function decode(reader, length, error) {
+                JavaSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.JavaSettings(), key, value;
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -104786,19 +108869,21 @@
                                         value = reader.string();
                                         break;
                                     default:
-                                        reader.skipType(tag2 & 7);
+                                        reader.skipType(tag2 & 7, long);
                                         break;
                                     }
                                 }
+                                if (key === "__proto__")
+                                    $util.makeProp(message.serviceClassNames, key);
                                 message.serviceClassNames[key] = value;
                                 break;
                             }
                         case 3: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -104829,9 +108914,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                JavaSettings.verify = function verify(message) {
+                JavaSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.libraryPackage != null && message.hasOwnProperty("libraryPackage"))
                         if (!$util.isString(message.libraryPackage))
                             return "libraryPackage: string expected";
@@ -104844,7 +108933,7 @@
                                 return "serviceClassNames: string{k:string} expected";
                     }
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
@@ -104859,9 +108948,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.JavaSettings} JavaSettings
                  */
-                JavaSettings.fromObject = function fromObject(object) {
+                JavaSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.JavaSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.JavaSettings();
                     if (object.libraryPackage != null)
                         message.libraryPackage = String(object.libraryPackage);
@@ -104869,13 +108962,16 @@
                         if (typeof object.serviceClassNames !== "object")
                             throw TypeError(".google.api.JavaSettings.serviceClassNames: object expected");
                         message.serviceClassNames = {};
-                        for (var keys = Object.keys(object.serviceClassNames), i = 0; i < keys.length; ++i)
+                        for (var keys = Object.keys(object.serviceClassNames), i = 0; i < keys.length; ++i) {
+                            if (keys[i] === "__proto__")
+                                $util.makeProp(message.serviceClassNames, keys[i]);
                             message.serviceClassNames[keys[i]] = String(object.serviceClassNames[keys[i]]);
+                        }
                     }
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.JavaSettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     return message;
                 };
@@ -104904,8 +109000,11 @@
                     var keys2;
                     if (message.serviceClassNames && (keys2 = Object.keys(message.serviceClassNames)).length) {
                         object.serviceClassNames = {};
-                        for (var j = 0; j < keys2.length; ++j)
+                        for (var j = 0; j < keys2.length; ++j) {
+                            if (keys2[j] === "__proto__")
+                                $util.makeProp(object.serviceClassNames, keys2[j]);
                             object.serviceClassNames[keys2[j]] = message.serviceClassNames[keys2[j]];
+                        }
                     }
                     if (message.common != null && message.hasOwnProperty("common"))
                         object.common = $root.google.api.CommonLanguageSettings.toObject(message.common, options);
@@ -104961,7 +109060,7 @@
                 function CppSettings(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -105026,9 +109125,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                CppSettings.decode = function decode(reader, length, error) {
+                CppSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.CppSettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -105036,11 +109139,11 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -105071,11 +109174,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                CppSettings.verify = function verify(message) {
+                CppSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
@@ -105090,14 +109197,18 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.CppSettings} CppSettings
                  */
-                CppSettings.fromObject = function fromObject(object) {
+                CppSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.CppSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.CppSettings();
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.CppSettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     return message;
                 };
@@ -105171,7 +109282,7 @@
                 function PhpSettings(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -105236,9 +109347,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                PhpSettings.decode = function decode(reader, length, error) {
+                PhpSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.PhpSettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -105246,11 +109361,11 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -105281,11 +109396,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                PhpSettings.verify = function verify(message) {
+                PhpSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
@@ -105300,14 +109419,18 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.PhpSettings} PhpSettings
                  */
-                PhpSettings.fromObject = function fromObject(object) {
+                PhpSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.PhpSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.PhpSettings();
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.PhpSettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     return message;
                 };
@@ -105382,7 +109505,7 @@
                 function PythonSettings(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -105457,9 +109580,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                PythonSettings.decode = function decode(reader, length, error) {
+                PythonSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.PythonSettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -105467,15 +109594,15 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 2: {
-                                message.experimentalFeatures = $root.google.api.PythonSettings.ExperimentalFeatures.decode(reader, reader.uint32());
+                                message.experimentalFeatures = $root.google.api.PythonSettings.ExperimentalFeatures.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -105506,16 +109633,20 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                PythonSettings.verify = function verify(message) {
+                PythonSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
                     if (message.experimentalFeatures != null && message.hasOwnProperty("experimentalFeatures")) {
-                        var error = $root.google.api.PythonSettings.ExperimentalFeatures.verify(message.experimentalFeatures);
+                        var error = $root.google.api.PythonSettings.ExperimentalFeatures.verify(message.experimentalFeatures, long + 1);
                         if (error)
                             return "experimentalFeatures." + error;
                     }
@@ -105530,19 +109661,23 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.PythonSettings} PythonSettings
                  */
-                PythonSettings.fromObject = function fromObject(object) {
+                PythonSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.PythonSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.PythonSettings();
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.PythonSettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     if (object.experimentalFeatures != null) {
                         if (typeof object.experimentalFeatures !== "object")
                             throw TypeError(".google.api.PythonSettings.experimentalFeatures: object expected");
-                        message.experimentalFeatures = $root.google.api.PythonSettings.ExperimentalFeatures.fromObject(object.experimentalFeatures);
+                        message.experimentalFeatures = $root.google.api.PythonSettings.ExperimentalFeatures.fromObject(object.experimentalFeatures, long + 1);
                     }
                     return message;
                 };
@@ -105619,7 +109754,7 @@
                     function ExperimentalFeatures(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -105704,9 +109839,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    ExperimentalFeatures.decode = function decode(reader, length, error) {
+                    ExperimentalFeatures.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.PythonSettings.ExperimentalFeatures();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -105726,7 +109865,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -105757,9 +109896,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    ExperimentalFeatures.verify = function verify(message) {
+                    ExperimentalFeatures.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.restAsyncIoEnabled != null && message.hasOwnProperty("restAsyncIoEnabled"))
                             if (typeof message.restAsyncIoEnabled !== "boolean")
                                 return "restAsyncIoEnabled: boolean expected";
@@ -105780,9 +109923,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.api.PythonSettings.ExperimentalFeatures} ExperimentalFeatures
                      */
-                    ExperimentalFeatures.fromObject = function fromObject(object) {
+                    ExperimentalFeatures.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.api.PythonSettings.ExperimentalFeatures)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.api.PythonSettings.ExperimentalFeatures();
                         if (object.restAsyncIoEnabled != null)
                             message.restAsyncIoEnabled = Boolean(object.restAsyncIoEnabled);
@@ -105872,7 +110019,7 @@
                 function NodeSettings(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -105937,9 +110084,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                NodeSettings.decode = function decode(reader, length, error) {
+                NodeSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.NodeSettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -105947,11 +110098,11 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -105982,11 +110133,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                NodeSettings.verify = function verify(message) {
+                NodeSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
@@ -106001,14 +110156,18 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.NodeSettings} NodeSettings
                  */
-                NodeSettings.fromObject = function fromObject(object) {
+                NodeSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.NodeSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.NodeSettings();
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.NodeSettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     return message;
                 };
@@ -106092,7 +110251,7 @@
                     this.handwrittenSignatures = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -106212,9 +110371,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                DotnetSettings.decode = function decode(reader, length, error) {
+                DotnetSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.DotnetSettings(), key, value;
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -106222,7 +110385,7 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 2: {
@@ -106241,10 +110404,12 @@
                                         value = reader.string();
                                         break;
                                     default:
-                                        reader.skipType(tag2 & 7);
+                                        reader.skipType(tag2 & 7, long);
                                         break;
                                     }
                                 }
+                                if (key === "__proto__")
+                                    $util.makeProp(message.renamedServices, key);
                                 message.renamedServices[key] = value;
                                 break;
                             }
@@ -106264,10 +110429,12 @@
                                         value = reader.string();
                                         break;
                                     default:
-                                        reader.skipType(tag2 & 7);
+                                        reader.skipType(tag2 & 7, long);
                                         break;
                                     }
                                 }
+                                if (key === "__proto__")
+                                    $util.makeProp(message.renamedResources, key);
                                 message.renamedResources[key] = value;
                                 break;
                             }
@@ -106290,7 +110457,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -106321,11 +110488,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                DotnetSettings.verify = function verify(message) {
+                DotnetSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
@@ -106377,28 +110548,38 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.DotnetSettings} DotnetSettings
                  */
-                DotnetSettings.fromObject = function fromObject(object) {
+                DotnetSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.DotnetSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.DotnetSettings();
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.DotnetSettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     if (object.renamedServices) {
                         if (typeof object.renamedServices !== "object")
                             throw TypeError(".google.api.DotnetSettings.renamedServices: object expected");
                         message.renamedServices = {};
-                        for (var keys = Object.keys(object.renamedServices), i = 0; i < keys.length; ++i)
+                        for (var keys = Object.keys(object.renamedServices), i = 0; i < keys.length; ++i) {
+                            if (keys[i] === "__proto__")
+                                $util.makeProp(message.renamedServices, keys[i]);
                             message.renamedServices[keys[i]] = String(object.renamedServices[keys[i]]);
+                        }
                     }
                     if (object.renamedResources) {
                         if (typeof object.renamedResources !== "object")
                             throw TypeError(".google.api.DotnetSettings.renamedResources: object expected");
                         message.renamedResources = {};
-                        for (var keys = Object.keys(object.renamedResources), i = 0; i < keys.length; ++i)
+                        for (var keys = Object.keys(object.renamedResources), i = 0; i < keys.length; ++i) {
+                            if (keys[i] === "__proto__")
+                                $util.makeProp(message.renamedResources, keys[i]);
                             message.renamedResources[keys[i]] = String(object.renamedResources[keys[i]]);
+                        }
                     }
                     if (object.ignoredResources) {
                         if (!Array.isArray(object.ignoredResources))
@@ -106453,13 +110634,19 @@
                     var keys2;
                     if (message.renamedServices && (keys2 = Object.keys(message.renamedServices)).length) {
                         object.renamedServices = {};
-                        for (var j = 0; j < keys2.length; ++j)
+                        for (var j = 0; j < keys2.length; ++j) {
+                            if (keys2[j] === "__proto__")
+                                $util.makeProp(object.renamedServices, keys2[j]);
                             object.renamedServices[keys2[j]] = message.renamedServices[keys2[j]];
+                        }
                     }
                     if (message.renamedResources && (keys2 = Object.keys(message.renamedResources)).length) {
                         object.renamedResources = {};
-                        for (var j = 0; j < keys2.length; ++j)
+                        for (var j = 0; j < keys2.length; ++j) {
+                            if (keys2[j] === "__proto__")
+                                $util.makeProp(object.renamedResources, keys2[j]);
                             object.renamedResources[keys2[j]] = message.renamedResources[keys2[j]];
+                        }
                     }
                     if (message.ignoredResources && message.ignoredResources.length) {
                         object.ignoredResources = [];
@@ -106528,7 +110715,7 @@
                 function RubySettings(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -106593,9 +110780,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                RubySettings.decode = function decode(reader, length, error) {
+                RubySettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.RubySettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -106603,11 +110794,11 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -106638,11 +110829,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                RubySettings.verify = function verify(message) {
+                RubySettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
@@ -106657,14 +110852,18 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.RubySettings} RubySettings
                  */
-                RubySettings.fromObject = function fromObject(object) {
+                RubySettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.RubySettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.RubySettings();
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.RubySettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     return message;
                 };
@@ -106740,7 +110939,7 @@
                     this.renamedServices = {};
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -106816,9 +111015,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                GoSettings.decode = function decode(reader, length, error) {
+                GoSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.GoSettings(), key, value;
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -106826,7 +111029,7 @@
                             break;
                         switch (tag >>> 3) {
                         case 1: {
-                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32());
+                                message.common = $root.google.api.CommonLanguageSettings.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 2: {
@@ -106845,15 +111048,17 @@
                                         value = reader.string();
                                         break;
                                     default:
-                                        reader.skipType(tag2 & 7);
+                                        reader.skipType(tag2 & 7, long);
                                         break;
                                     }
                                 }
+                                if (key === "__proto__")
+                                    $util.makeProp(message.renamedServices, key);
                                 message.renamedServices[key] = value;
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -106884,11 +111089,15 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                GoSettings.verify = function verify(message) {
+                GoSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.common != null && message.hasOwnProperty("common")) {
-                        var error = $root.google.api.CommonLanguageSettings.verify(message.common);
+                        var error = $root.google.api.CommonLanguageSettings.verify(message.common, long + 1);
                         if (error)
                             return "common." + error;
                     }
@@ -106911,21 +111120,28 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.GoSettings} GoSettings
                  */
-                GoSettings.fromObject = function fromObject(object) {
+                GoSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.GoSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.GoSettings();
                     if (object.common != null) {
                         if (typeof object.common !== "object")
                             throw TypeError(".google.api.GoSettings.common: object expected");
-                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common);
+                        message.common = $root.google.api.CommonLanguageSettings.fromObject(object.common, long + 1);
                     }
                     if (object.renamedServices) {
                         if (typeof object.renamedServices !== "object")
                             throw TypeError(".google.api.GoSettings.renamedServices: object expected");
                         message.renamedServices = {};
-                        for (var keys = Object.keys(object.renamedServices), i = 0; i < keys.length; ++i)
+                        for (var keys = Object.keys(object.renamedServices), i = 0; i < keys.length; ++i) {
+                            if (keys[i] === "__proto__")
+                                $util.makeProp(message.renamedServices, keys[i]);
                             message.renamedServices[keys[i]] = String(object.renamedServices[keys[i]]);
+                        }
                     }
                     return message;
                 };
@@ -106952,8 +111168,11 @@
                     var keys2;
                     if (message.renamedServices && (keys2 = Object.keys(message.renamedServices)).length) {
                         object.renamedServices = {};
-                        for (var j = 0; j < keys2.length; ++j)
+                        for (var j = 0; j < keys2.length; ++j) {
+                            if (keys2[j] === "__proto__")
+                                $util.makeProp(object.renamedServices, keys2[j]);
                             object.renamedServices[keys2[j]] = message.renamedServices[keys2[j]];
+                        }
                     }
                     return object;
                 };
@@ -107010,7 +111229,7 @@
                     this.autoPopulatedFields = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -107096,9 +111315,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                MethodSettings.decode = function decode(reader, length, error) {
+                MethodSettings.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.MethodSettings();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -107110,7 +111333,7 @@
                                 break;
                             }
                         case 2: {
-                                message.longRunning = $root.google.api.MethodSettings.LongRunning.decode(reader, reader.uint32());
+                                message.longRunning = $root.google.api.MethodSettings.LongRunning.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 3: {
@@ -107120,7 +111343,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -107151,14 +111374,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                MethodSettings.verify = function verify(message) {
+                MethodSettings.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.selector != null && message.hasOwnProperty("selector"))
                         if (!$util.isString(message.selector))
                             return "selector: string expected";
                     if (message.longRunning != null && message.hasOwnProperty("longRunning")) {
-                        var error = $root.google.api.MethodSettings.LongRunning.verify(message.longRunning);
+                        var error = $root.google.api.MethodSettings.LongRunning.verify(message.longRunning, long + 1);
                         if (error)
                             return "longRunning." + error;
                     }
@@ -107180,16 +111407,20 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.MethodSettings} MethodSettings
                  */
-                MethodSettings.fromObject = function fromObject(object) {
+                MethodSettings.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.MethodSettings)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.MethodSettings();
                     if (object.selector != null)
                         message.selector = String(object.selector);
                     if (object.longRunning != null) {
                         if (typeof object.longRunning !== "object")
                             throw TypeError(".google.api.MethodSettings.longRunning: object expected");
-                        message.longRunning = $root.google.api.MethodSettings.LongRunning.fromObject(object.longRunning);
+                        message.longRunning = $root.google.api.MethodSettings.LongRunning.fromObject(object.longRunning, long + 1);
                     }
                     if (object.autoPopulatedFields) {
                         if (!Array.isArray(object.autoPopulatedFields))
@@ -107281,7 +111512,7 @@
                     function LongRunning(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -107376,9 +111607,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    LongRunning.decode = function decode(reader, length, error) {
+                    LongRunning.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.MethodSettings.LongRunning();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -107386,7 +111621,7 @@
                                 break;
                             switch (tag >>> 3) {
                             case 1: {
-                                    message.initialPollDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                    message.initialPollDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 2: {
@@ -107394,15 +111629,15 @@
                                     break;
                                 }
                             case 3: {
-                                    message.maxPollDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                    message.maxPollDelay = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 4: {
-                                    message.totalPollTimeout = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                    message.totalPollTimeout = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -107433,11 +111668,15 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    LongRunning.verify = function verify(message) {
+                    LongRunning.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.initialPollDelay != null && message.hasOwnProperty("initialPollDelay")) {
-                            var error = $root.google.protobuf.Duration.verify(message.initialPollDelay);
+                            var error = $root.google.protobuf.Duration.verify(message.initialPollDelay, long + 1);
                             if (error)
                                 return "initialPollDelay." + error;
                         }
@@ -107445,12 +111684,12 @@
                             if (typeof message.pollDelayMultiplier !== "number")
                                 return "pollDelayMultiplier: number expected";
                         if (message.maxPollDelay != null && message.hasOwnProperty("maxPollDelay")) {
-                            var error = $root.google.protobuf.Duration.verify(message.maxPollDelay);
+                            var error = $root.google.protobuf.Duration.verify(message.maxPollDelay, long + 1);
                             if (error)
                                 return "maxPollDelay." + error;
                         }
                         if (message.totalPollTimeout != null && message.hasOwnProperty("totalPollTimeout")) {
-                            var error = $root.google.protobuf.Duration.verify(message.totalPollTimeout);
+                            var error = $root.google.protobuf.Duration.verify(message.totalPollTimeout, long + 1);
                             if (error)
                                 return "totalPollTimeout." + error;
                         }
@@ -107465,26 +111704,30 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.api.MethodSettings.LongRunning} LongRunning
                      */
-                    LongRunning.fromObject = function fromObject(object) {
+                    LongRunning.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.api.MethodSettings.LongRunning)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.api.MethodSettings.LongRunning();
                         if (object.initialPollDelay != null) {
                             if (typeof object.initialPollDelay !== "object")
                                 throw TypeError(".google.api.MethodSettings.LongRunning.initialPollDelay: object expected");
-                            message.initialPollDelay = $root.google.protobuf.Duration.fromObject(object.initialPollDelay);
+                            message.initialPollDelay = $root.google.protobuf.Duration.fromObject(object.initialPollDelay, long + 1);
                         }
                         if (object.pollDelayMultiplier != null)
                             message.pollDelayMultiplier = Number(object.pollDelayMultiplier);
                         if (object.maxPollDelay != null) {
                             if (typeof object.maxPollDelay !== "object")
                                 throw TypeError(".google.api.MethodSettings.LongRunning.maxPollDelay: object expected");
-                            message.maxPollDelay = $root.google.protobuf.Duration.fromObject(object.maxPollDelay);
+                            message.maxPollDelay = $root.google.protobuf.Duration.fromObject(object.maxPollDelay, long + 1);
                         }
                         if (object.totalPollTimeout != null) {
                             if (typeof object.totalPollTimeout !== "object")
                                 throw TypeError(".google.api.MethodSettings.LongRunning.totalPollTimeout: object expected");
-                            message.totalPollTimeout = $root.google.protobuf.Duration.fromObject(object.totalPollTimeout);
+                            message.totalPollTimeout = $root.google.protobuf.Duration.fromObject(object.totalPollTimeout, long + 1);
                         }
                         return message;
                     };
@@ -107615,7 +111858,7 @@
                     this.methods = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -107691,9 +111934,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                SelectiveGapicGeneration.decode = function decode(reader, length, error) {
+                SelectiveGapicGeneration.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.api.SelectiveGapicGeneration();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -107711,7 +111958,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -107742,9 +111989,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                SelectiveGapicGeneration.verify = function verify(message) {
+                SelectiveGapicGeneration.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.methods != null && message.hasOwnProperty("methods")) {
                         if (!Array.isArray(message.methods))
                             return "methods: array expected";
@@ -107766,9 +112017,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.api.SelectiveGapicGeneration} SelectiveGapicGeneration
                  */
-                SelectiveGapicGeneration.fromObject = function fromObject(object) {
+                SelectiveGapicGeneration.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.api.SelectiveGapicGeneration)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.api.SelectiveGapicGeneration();
                     if (object.methods) {
                         if (!Array.isArray(object.methods))
@@ -108100,7 +112355,7 @@
                 function Operation(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -108219,9 +112474,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Operation.decode = function decode(reader, length, error) {
+                Operation.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.Operation();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -108233,7 +112492,7 @@
                                 break;
                             }
                         case 2: {
-                                message.metadata = $root.google.protobuf.Any.decode(reader, reader.uint32());
+                                message.metadata = $root.google.protobuf.Any.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 3: {
@@ -108241,15 +112500,15 @@
                                 break;
                             }
                         case 4: {
-                                message.error = $root.google.rpc.Status.decode(reader, reader.uint32());
+                                message.error = $root.google.rpc.Status.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         case 5: {
-                                message.response = $root.google.protobuf.Any.decode(reader, reader.uint32());
+                                message.response = $root.google.protobuf.Any.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -108280,15 +112539,19 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Operation.verify = function verify(message) {
+                Operation.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     var properties = {};
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
                     if (message.metadata != null && message.hasOwnProperty("metadata")) {
-                        var error = $root.google.protobuf.Any.verify(message.metadata);
+                        var error = $root.google.protobuf.Any.verify(message.metadata, long + 1);
                         if (error)
                             return "metadata." + error;
                     }
@@ -108298,7 +112561,7 @@
                     if (message.error != null && message.hasOwnProperty("error")) {
                         properties.result = 1;
                         {
-                            var error = $root.google.rpc.Status.verify(message.error);
+                            var error = $root.google.rpc.Status.verify(message.error, long + 1);
                             if (error)
                                 return "error." + error;
                         }
@@ -108308,7 +112571,7 @@
                             return "result: multiple values";
                         properties.result = 1;
                         {
-                            var error = $root.google.protobuf.Any.verify(message.response);
+                            var error = $root.google.protobuf.Any.verify(message.response, long + 1);
                             if (error)
                                 return "response." + error;
                         }
@@ -108324,28 +112587,32 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.Operation} Operation
                  */
-                Operation.fromObject = function fromObject(object) {
+                Operation.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.Operation)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.Operation();
                     if (object.name != null)
                         message.name = String(object.name);
                     if (object.metadata != null) {
                         if (typeof object.metadata !== "object")
                             throw TypeError(".google.longrunning.Operation.metadata: object expected");
-                        message.metadata = $root.google.protobuf.Any.fromObject(object.metadata);
+                        message.metadata = $root.google.protobuf.Any.fromObject(object.metadata, long + 1);
                     }
                     if (object.done != null)
                         message.done = Boolean(object.done);
                     if (object.error != null) {
                         if (typeof object.error !== "object")
                             throw TypeError(".google.longrunning.Operation.error: object expected");
-                        message.error = $root.google.rpc.Status.fromObject(object.error);
+                        message.error = $root.google.rpc.Status.fromObject(object.error, long + 1);
                     }
                     if (object.response != null) {
                         if (typeof object.response !== "object")
                             throw TypeError(".google.longrunning.Operation.response: object expected");
-                        message.response = $root.google.protobuf.Any.fromObject(object.response);
+                        message.response = $root.google.protobuf.Any.fromObject(object.response, long + 1);
                     }
                     return message;
                 };
@@ -108436,7 +112703,7 @@
                 function GetOperationRequest(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -108501,9 +112768,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                GetOperationRequest.decode = function decode(reader, length, error) {
+                GetOperationRequest.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.GetOperationRequest();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -108515,7 +112786,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -108546,9 +112817,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                GetOperationRequest.verify = function verify(message) {
+                GetOperationRequest.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
@@ -108563,9 +112838,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.GetOperationRequest} GetOperationRequest
                  */
-                GetOperationRequest.fromObject = function fromObject(object) {
+                GetOperationRequest.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.GetOperationRequest)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.GetOperationRequest();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -108644,7 +112923,7 @@
                 function ListOperationsRequest(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -108739,9 +113018,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ListOperationsRequest.decode = function decode(reader, length, error) {
+                ListOperationsRequest.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.ListOperationsRequest();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -108765,7 +113048,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -108796,9 +113079,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ListOperationsRequest.verify = function verify(message) {
+                ListOperationsRequest.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
@@ -108822,9 +113109,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.ListOperationsRequest} ListOperationsRequest
                  */
-                ListOperationsRequest.fromObject = function fromObject(object) {
+                ListOperationsRequest.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.ListOperationsRequest)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.ListOperationsRequest();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -108918,7 +113209,7 @@
                     this.operations = [];
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -108994,9 +113285,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                ListOperationsResponse.decode = function decode(reader, length, error) {
+                ListOperationsResponse.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.ListOperationsResponse();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -109006,7 +113301,7 @@
                         case 1: {
                                 if (!(message.operations && message.operations.length))
                                     message.operations = [];
-                                message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32()));
+                                message.operations.push($root.google.longrunning.Operation.decode(reader, reader.uint32(), undefined, long + 1));
                                 break;
                             }
                         case 2: {
@@ -109014,7 +113309,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -109045,14 +113340,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                ListOperationsResponse.verify = function verify(message) {
+                ListOperationsResponse.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.operations != null && message.hasOwnProperty("operations")) {
                         if (!Array.isArray(message.operations))
                             return "operations: array expected";
                         for (var i = 0; i < message.operations.length; ++i) {
-                            var error = $root.google.longrunning.Operation.verify(message.operations[i]);
+                            var error = $root.google.longrunning.Operation.verify(message.operations[i], long + 1);
                             if (error)
                                 return "operations." + error;
                         }
@@ -109071,9 +113370,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.ListOperationsResponse} ListOperationsResponse
                  */
-                ListOperationsResponse.fromObject = function fromObject(object) {
+                ListOperationsResponse.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.ListOperationsResponse)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.ListOperationsResponse();
                     if (object.operations) {
                         if (!Array.isArray(object.operations))
@@ -109082,7 +113385,7 @@
                         for (var i = 0; i < object.operations.length; ++i) {
                             if (typeof object.operations[i] !== "object")
                                 throw TypeError(".google.longrunning.ListOperationsResponse.operations: object expected");
-                            message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i]);
+                            message.operations[i] = $root.google.longrunning.Operation.fromObject(object.operations[i], long + 1);
                         }
                     }
                     if (object.nextPageToken != null)
@@ -109166,7 +113469,7 @@
                 function CancelOperationRequest(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -109231,9 +113534,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                CancelOperationRequest.decode = function decode(reader, length, error) {
+                CancelOperationRequest.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.CancelOperationRequest();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -109245,7 +113552,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -109276,9 +113583,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                CancelOperationRequest.verify = function verify(message) {
+                CancelOperationRequest.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
@@ -109293,9 +113604,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.CancelOperationRequest} CancelOperationRequest
                  */
-                CancelOperationRequest.fromObject = function fromObject(object) {
+                CancelOperationRequest.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.CancelOperationRequest)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.CancelOperationRequest();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -109371,7 +113686,7 @@
                 function DeleteOperationRequest(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -109436,9 +113751,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                DeleteOperationRequest.decode = function decode(reader, length, error) {
+                DeleteOperationRequest.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.DeleteOperationRequest();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -109450,7 +113769,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -109481,9 +113800,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                DeleteOperationRequest.verify = function verify(message) {
+                DeleteOperationRequest.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
@@ -109498,9 +113821,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.DeleteOperationRequest} DeleteOperationRequest
                  */
-                DeleteOperationRequest.fromObject = function fromObject(object) {
+                DeleteOperationRequest.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.DeleteOperationRequest)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.DeleteOperationRequest();
                     if (object.name != null)
                         message.name = String(object.name);
@@ -109577,7 +113904,7 @@
                 function WaitOperationRequest(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -109652,9 +113979,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                WaitOperationRequest.decode = function decode(reader, length, error) {
+                WaitOperationRequest.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.WaitOperationRequest();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -109666,11 +113997,11 @@
                                 break;
                             }
                         case 2: {
-                                message.timeout = $root.google.protobuf.Duration.decode(reader, reader.uint32());
+                                message.timeout = $root.google.protobuf.Duration.decode(reader, reader.uint32(), undefined, long + 1);
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -109701,14 +114032,18 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                WaitOperationRequest.verify = function verify(message) {
+                WaitOperationRequest.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.name != null && message.hasOwnProperty("name"))
                         if (!$util.isString(message.name))
                             return "name: string expected";
                     if (message.timeout != null && message.hasOwnProperty("timeout")) {
-                        var error = $root.google.protobuf.Duration.verify(message.timeout);
+                        var error = $root.google.protobuf.Duration.verify(message.timeout, long + 1);
                         if (error)
                             return "timeout." + error;
                     }
@@ -109723,16 +114058,20 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.WaitOperationRequest} WaitOperationRequest
                  */
-                WaitOperationRequest.fromObject = function fromObject(object) {
+                WaitOperationRequest.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.WaitOperationRequest)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.WaitOperationRequest();
                     if (object.name != null)
                         message.name = String(object.name);
                     if (object.timeout != null) {
                         if (typeof object.timeout !== "object")
                             throw TypeError(".google.longrunning.WaitOperationRequest.timeout: object expected");
-                        message.timeout = $root.google.protobuf.Duration.fromObject(object.timeout);
+                        message.timeout = $root.google.protobuf.Duration.fromObject(object.timeout, long + 1);
                     }
                     return message;
                 };
@@ -109811,7 +114150,7 @@
                 function OperationInfo(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -109886,9 +114225,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                OperationInfo.decode = function decode(reader, length, error) {
+                OperationInfo.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.longrunning.OperationInfo();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -109904,7 +114247,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -109935,9 +114278,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                OperationInfo.verify = function verify(message) {
+                OperationInfo.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.responseType != null && message.hasOwnProperty("responseType"))
                         if (!$util.isString(message.responseType))
                             return "responseType: string expected";
@@ -109955,9 +114302,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.longrunning.OperationInfo} OperationInfo
                  */
-                OperationInfo.fromObject = function fromObject(object) {
+                OperationInfo.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.longrunning.OperationInfo)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.longrunning.OperationInfo();
                     if (object.responseType != null)
                         message.responseType = String(object.responseType);
@@ -110196,7 +114547,7 @@
                     function SetIamPolicyRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -110281,9 +114632,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    SetIamPolicyRequest.decode = function decode(reader, length, error) {
+                    SetIamPolicyRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.SetIamPolicyRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -110295,15 +114650,15 @@
                                     break;
                                 }
                             case 2: {
-                                    message.policy = $root.google.iam.v1.Policy.decode(reader, reader.uint32());
+                                    message.policy = $root.google.iam.v1.Policy.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             case 3: {
-                                    message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                    message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -110334,19 +114689,23 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    SetIamPolicyRequest.verify = function verify(message) {
+                    SetIamPolicyRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.resource != null && message.hasOwnProperty("resource"))
                             if (!$util.isString(message.resource))
                                 return "resource: string expected";
                         if (message.policy != null && message.hasOwnProperty("policy")) {
-                            var error = $root.google.iam.v1.Policy.verify(message.policy);
+                            var error = $root.google.iam.v1.Policy.verify(message.policy, long + 1);
                             if (error)
                                 return "policy." + error;
                         }
                         if (message.updateMask != null && message.hasOwnProperty("updateMask")) {
-                            var error = $root.google.protobuf.FieldMask.verify(message.updateMask);
+                            var error = $root.google.protobuf.FieldMask.verify(message.updateMask, long + 1);
                             if (error)
                                 return "updateMask." + error;
                         }
@@ -110361,21 +114720,25 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.SetIamPolicyRequest} SetIamPolicyRequest
                      */
-                    SetIamPolicyRequest.fromObject = function fromObject(object) {
+                    SetIamPolicyRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.SetIamPolicyRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.SetIamPolicyRequest();
                         if (object.resource != null)
                             message.resource = String(object.resource);
                         if (object.policy != null) {
                             if (typeof object.policy !== "object")
                                 throw TypeError(".google.iam.v1.SetIamPolicyRequest.policy: object expected");
-                            message.policy = $root.google.iam.v1.Policy.fromObject(object.policy);
+                            message.policy = $root.google.iam.v1.Policy.fromObject(object.policy, long + 1);
                         }
                         if (object.updateMask != null) {
                             if (typeof object.updateMask !== "object")
                                 throw TypeError(".google.iam.v1.SetIamPolicyRequest.updateMask: object expected");
-                            message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask);
+                            message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask, long + 1);
                         }
                         return message;
                     };
@@ -110457,7 +114820,7 @@
                     function GetIamPolicyRequest(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -110532,9 +114895,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    GetIamPolicyRequest.decode = function decode(reader, length, error) {
+                    GetIamPolicyRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.GetIamPolicyRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -110546,11 +114913,11 @@
                                     break;
                                 }
                             case 2: {
-                                    message.options = $root.google.iam.v1.GetPolicyOptions.decode(reader, reader.uint32());
+                                    message.options = $root.google.iam.v1.GetPolicyOptions.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -110581,14 +114948,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    GetIamPolicyRequest.verify = function verify(message) {
+                    GetIamPolicyRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.resource != null && message.hasOwnProperty("resource"))
                             if (!$util.isString(message.resource))
                                 return "resource: string expected";
                         if (message.options != null && message.hasOwnProperty("options")) {
-                            var error = $root.google.iam.v1.GetPolicyOptions.verify(message.options);
+                            var error = $root.google.iam.v1.GetPolicyOptions.verify(message.options, long + 1);
                             if (error)
                                 return "options." + error;
                         }
@@ -110603,16 +114974,20 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.GetIamPolicyRequest} GetIamPolicyRequest
                      */
-                    GetIamPolicyRequest.fromObject = function fromObject(object) {
+                    GetIamPolicyRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.GetIamPolicyRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.GetIamPolicyRequest();
                         if (object.resource != null)
                             message.resource = String(object.resource);
                         if (object.options != null) {
                             if (typeof object.options !== "object")
                                 throw TypeError(".google.iam.v1.GetIamPolicyRequest.options: object expected");
-                            message.options = $root.google.iam.v1.GetPolicyOptions.fromObject(object.options);
+                            message.options = $root.google.iam.v1.GetPolicyOptions.fromObject(object.options, long + 1);
                         }
                         return message;
                     };
@@ -110692,7 +115067,7 @@
                         this.permissions = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -110768,9 +115143,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    TestIamPermissionsRequest.decode = function decode(reader, length, error) {
+                    TestIamPermissionsRequest.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.TestIamPermissionsRequest();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -110788,7 +115167,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -110819,9 +115198,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    TestIamPermissionsRequest.verify = function verify(message) {
+                    TestIamPermissionsRequest.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.resource != null && message.hasOwnProperty("resource"))
                             if (!$util.isString(message.resource))
                                 return "resource: string expected";
@@ -110843,9 +115226,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.TestIamPermissionsRequest} TestIamPermissionsRequest
                      */
-                    TestIamPermissionsRequest.fromObject = function fromObject(object) {
+                    TestIamPermissionsRequest.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.TestIamPermissionsRequest)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.TestIamPermissionsRequest();
                         if (object.resource != null)
                             message.resource = String(object.resource);
@@ -110936,7 +115323,7 @@
                         this.permissions = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -111002,9 +115389,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    TestIamPermissionsResponse.decode = function decode(reader, length, error) {
+                    TestIamPermissionsResponse.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.TestIamPermissionsResponse();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -111018,7 +115409,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -111049,9 +115440,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    TestIamPermissionsResponse.verify = function verify(message) {
+                    TestIamPermissionsResponse.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.permissions != null && message.hasOwnProperty("permissions")) {
                             if (!Array.isArray(message.permissions))
                                 return "permissions: array expected";
@@ -111070,9 +115465,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.TestIamPermissionsResponse} TestIamPermissionsResponse
                      */
-                    TestIamPermissionsResponse.fromObject = function fromObject(object) {
+                    TestIamPermissionsResponse.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.TestIamPermissionsResponse)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.TestIamPermissionsResponse();
                         if (object.permissions) {
                             if (!Array.isArray(object.permissions))
@@ -111156,7 +115555,7 @@
                     function GetPolicyOptions(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -111221,9 +115620,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    GetPolicyOptions.decode = function decode(reader, length, error) {
+                    GetPolicyOptions.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.GetPolicyOptions();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -111235,7 +115638,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -111266,9 +115669,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    GetPolicyOptions.verify = function verify(message) {
+                    GetPolicyOptions.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.requestedPolicyVersion != null && message.hasOwnProperty("requestedPolicyVersion"))
                             if (!$util.isInteger(message.requestedPolicyVersion))
                                 return "requestedPolicyVersion: integer expected";
@@ -111283,9 +115690,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.GetPolicyOptions} GetPolicyOptions
                      */
-                    GetPolicyOptions.fromObject = function fromObject(object) {
+                    GetPolicyOptions.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.GetPolicyOptions)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.GetPolicyOptions();
                         if (object.requestedPolicyVersion != null)
                             message.requestedPolicyVersion = object.requestedPolicyVersion | 0;
@@ -111366,7 +115777,7 @@
                         this.auditConfigs = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -111463,9 +115874,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Policy.decode = function decode(reader, length, error) {
+                    Policy.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.Policy();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -111479,13 +115894,13 @@
                             case 4: {
                                     if (!(message.bindings && message.bindings.length))
                                         message.bindings = [];
-                                    message.bindings.push($root.google.iam.v1.Binding.decode(reader, reader.uint32()));
+                                    message.bindings.push($root.google.iam.v1.Binding.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 6: {
                                     if (!(message.auditConfigs && message.auditConfigs.length))
                                         message.auditConfigs = [];
-                                    message.auditConfigs.push($root.google.iam.v1.AuditConfig.decode(reader, reader.uint32()));
+                                    message.auditConfigs.push($root.google.iam.v1.AuditConfig.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 3: {
@@ -111493,7 +115908,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -111524,9 +115939,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Policy.verify = function verify(message) {
+                    Policy.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.version != null && message.hasOwnProperty("version"))
                             if (!$util.isInteger(message.version))
                                 return "version: integer expected";
@@ -111534,7 +115953,7 @@
                             if (!Array.isArray(message.bindings))
                                 return "bindings: array expected";
                             for (var i = 0; i < message.bindings.length; ++i) {
-                                var error = $root.google.iam.v1.Binding.verify(message.bindings[i]);
+                                var error = $root.google.iam.v1.Binding.verify(message.bindings[i], long + 1);
                                 if (error)
                                     return "bindings." + error;
                             }
@@ -111543,7 +115962,7 @@
                             if (!Array.isArray(message.auditConfigs))
                                 return "auditConfigs: array expected";
                             for (var i = 0; i < message.auditConfigs.length; ++i) {
-                                var error = $root.google.iam.v1.AuditConfig.verify(message.auditConfigs[i]);
+                                var error = $root.google.iam.v1.AuditConfig.verify(message.auditConfigs[i], long + 1);
                                 if (error)
                                     return "auditConfigs." + error;
                             }
@@ -111562,9 +115981,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.Policy} Policy
                      */
-                    Policy.fromObject = function fromObject(object) {
+                    Policy.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.Policy)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.Policy();
                         if (object.version != null)
                             message.version = object.version | 0;
@@ -111575,7 +115998,7 @@
                             for (var i = 0; i < object.bindings.length; ++i) {
                                 if (typeof object.bindings[i] !== "object")
                                     throw TypeError(".google.iam.v1.Policy.bindings: object expected");
-                                message.bindings[i] = $root.google.iam.v1.Binding.fromObject(object.bindings[i]);
+                                message.bindings[i] = $root.google.iam.v1.Binding.fromObject(object.bindings[i], long + 1);
                             }
                         }
                         if (object.auditConfigs) {
@@ -111585,7 +116008,7 @@
                             for (var i = 0; i < object.auditConfigs.length; ++i) {
                                 if (typeof object.auditConfigs[i] !== "object")
                                     throw TypeError(".google.iam.v1.Policy.auditConfigs: object expected");
-                                message.auditConfigs[i] = $root.google.iam.v1.AuditConfig.fromObject(object.auditConfigs[i]);
+                                message.auditConfigs[i] = $root.google.iam.v1.AuditConfig.fromObject(object.auditConfigs[i], long + 1);
                             }
                         }
                         if (object.etag != null)
@@ -111692,7 +116115,7 @@
                         this.members = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -111778,9 +116201,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    Binding.decode = function decode(reader, length, error) {
+                    Binding.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.Binding();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -111798,11 +116225,11 @@
                                     break;
                                 }
                             case 3: {
-                                    message.condition = $root.google.type.Expr.decode(reader, reader.uint32());
+                                    message.condition = $root.google.type.Expr.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -111833,9 +116260,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    Binding.verify = function verify(message) {
+                    Binding.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.role != null && message.hasOwnProperty("role"))
                             if (!$util.isString(message.role))
                                 return "role: string expected";
@@ -111847,7 +116278,7 @@
                                     return "members: string[] expected";
                         }
                         if (message.condition != null && message.hasOwnProperty("condition")) {
-                            var error = $root.google.type.Expr.verify(message.condition);
+                            var error = $root.google.type.Expr.verify(message.condition, long + 1);
                             if (error)
                                 return "condition." + error;
                         }
@@ -111862,9 +116293,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.Binding} Binding
                      */
-                    Binding.fromObject = function fromObject(object) {
+                    Binding.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.Binding)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.Binding();
                         if (object.role != null)
                             message.role = String(object.role);
@@ -111878,7 +116313,7 @@
                         if (object.condition != null) {
                             if (typeof object.condition !== "object")
                                 throw TypeError(".google.iam.v1.Binding.condition: object expected");
-                            message.condition = $root.google.type.Expr.fromObject(object.condition);
+                            message.condition = $root.google.type.Expr.fromObject(object.condition, long + 1);
                         }
                         return message;
                     };
@@ -111965,7 +116400,7 @@
                         this.auditLogConfigs = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -112041,9 +116476,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    AuditConfig.decode = function decode(reader, length, error) {
+                    AuditConfig.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.AuditConfig();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -112057,11 +116496,11 @@
                             case 3: {
                                     if (!(message.auditLogConfigs && message.auditLogConfigs.length))
                                         message.auditLogConfigs = [];
-                                    message.auditLogConfigs.push($root.google.iam.v1.AuditLogConfig.decode(reader, reader.uint32()));
+                                    message.auditLogConfigs.push($root.google.iam.v1.AuditLogConfig.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -112092,9 +116531,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    AuditConfig.verify = function verify(message) {
+                    AuditConfig.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.service != null && message.hasOwnProperty("service"))
                             if (!$util.isString(message.service))
                                 return "service: string expected";
@@ -112102,7 +116545,7 @@
                             if (!Array.isArray(message.auditLogConfigs))
                                 return "auditLogConfigs: array expected";
                             for (var i = 0; i < message.auditLogConfigs.length; ++i) {
-                                var error = $root.google.iam.v1.AuditLogConfig.verify(message.auditLogConfigs[i]);
+                                var error = $root.google.iam.v1.AuditLogConfig.verify(message.auditLogConfigs[i], long + 1);
                                 if (error)
                                     return "auditLogConfigs." + error;
                             }
@@ -112118,9 +116561,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.AuditConfig} AuditConfig
                      */
-                    AuditConfig.fromObject = function fromObject(object) {
+                    AuditConfig.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.AuditConfig)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.AuditConfig();
                         if (object.service != null)
                             message.service = String(object.service);
@@ -112131,7 +116578,7 @@
                             for (var i = 0; i < object.auditLogConfigs.length; ++i) {
                                 if (typeof object.auditLogConfigs[i] !== "object")
                                     throw TypeError(".google.iam.v1.AuditConfig.auditLogConfigs: object expected");
-                                message.auditLogConfigs[i] = $root.google.iam.v1.AuditLogConfig.fromObject(object.auditLogConfigs[i]);
+                                message.auditLogConfigs[i] = $root.google.iam.v1.AuditLogConfig.fromObject(object.auditLogConfigs[i], long + 1);
                             }
                         }
                         return message;
@@ -112215,7 +116662,7 @@
                         this.exemptedMembers = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -112291,9 +116738,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    AuditLogConfig.decode = function decode(reader, length, error) {
+                    AuditLogConfig.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.AuditLogConfig();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -112311,7 +116762,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -112342,9 +116793,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    AuditLogConfig.verify = function verify(message) {
+                    AuditLogConfig.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.logType != null && message.hasOwnProperty("logType"))
                             switch (message.logType) {
                             default:
@@ -112373,9 +116828,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.AuditLogConfig} AuditLogConfig
                      */
-                    AuditLogConfig.fromObject = function fromObject(object) {
+                    AuditLogConfig.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.AuditLogConfig)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.AuditLogConfig();
                         switch (object.logType) {
                         default:
@@ -112508,7 +116967,7 @@
                         this.auditConfigDeltas = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -112585,9 +117044,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    PolicyDelta.decode = function decode(reader, length, error) {
+                    PolicyDelta.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.PolicyDelta();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -112597,17 +117060,17 @@
                             case 1: {
                                     if (!(message.bindingDeltas && message.bindingDeltas.length))
                                         message.bindingDeltas = [];
-                                    message.bindingDeltas.push($root.google.iam.v1.BindingDelta.decode(reader, reader.uint32()));
+                                    message.bindingDeltas.push($root.google.iam.v1.BindingDelta.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             case 2: {
                                     if (!(message.auditConfigDeltas && message.auditConfigDeltas.length))
                                         message.auditConfigDeltas = [];
-                                    message.auditConfigDeltas.push($root.google.iam.v1.AuditConfigDelta.decode(reader, reader.uint32()));
+                                    message.auditConfigDeltas.push($root.google.iam.v1.AuditConfigDelta.decode(reader, reader.uint32(), undefined, long + 1));
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -112638,14 +117101,18 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    PolicyDelta.verify = function verify(message) {
+                    PolicyDelta.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.bindingDeltas != null && message.hasOwnProperty("bindingDeltas")) {
                             if (!Array.isArray(message.bindingDeltas))
                                 return "bindingDeltas: array expected";
                             for (var i = 0; i < message.bindingDeltas.length; ++i) {
-                                var error = $root.google.iam.v1.BindingDelta.verify(message.bindingDeltas[i]);
+                                var error = $root.google.iam.v1.BindingDelta.verify(message.bindingDeltas[i], long + 1);
                                 if (error)
                                     return "bindingDeltas." + error;
                             }
@@ -112654,7 +117121,7 @@
                             if (!Array.isArray(message.auditConfigDeltas))
                                 return "auditConfigDeltas: array expected";
                             for (var i = 0; i < message.auditConfigDeltas.length; ++i) {
-                                var error = $root.google.iam.v1.AuditConfigDelta.verify(message.auditConfigDeltas[i]);
+                                var error = $root.google.iam.v1.AuditConfigDelta.verify(message.auditConfigDeltas[i], long + 1);
                                 if (error)
                                     return "auditConfigDeltas." + error;
                             }
@@ -112670,9 +117137,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.PolicyDelta} PolicyDelta
                      */
-                    PolicyDelta.fromObject = function fromObject(object) {
+                    PolicyDelta.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.PolicyDelta)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.PolicyDelta();
                         if (object.bindingDeltas) {
                             if (!Array.isArray(object.bindingDeltas))
@@ -112681,7 +117152,7 @@
                             for (var i = 0; i < object.bindingDeltas.length; ++i) {
                                 if (typeof object.bindingDeltas[i] !== "object")
                                     throw TypeError(".google.iam.v1.PolicyDelta.bindingDeltas: object expected");
-                                message.bindingDeltas[i] = $root.google.iam.v1.BindingDelta.fromObject(object.bindingDeltas[i]);
+                                message.bindingDeltas[i] = $root.google.iam.v1.BindingDelta.fromObject(object.bindingDeltas[i], long + 1);
                             }
                         }
                         if (object.auditConfigDeltas) {
@@ -112691,7 +117162,7 @@
                             for (var i = 0; i < object.auditConfigDeltas.length; ++i) {
                                 if (typeof object.auditConfigDeltas[i] !== "object")
                                     throw TypeError(".google.iam.v1.PolicyDelta.auditConfigDeltas: object expected");
-                                message.auditConfigDeltas[i] = $root.google.iam.v1.AuditConfigDelta.fromObject(object.auditConfigDeltas[i]);
+                                message.auditConfigDeltas[i] = $root.google.iam.v1.AuditConfigDelta.fromObject(object.auditConfigDeltas[i], long + 1);
                             }
                         }
                         return message;
@@ -112779,7 +117250,7 @@
                     function BindingDelta(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -112874,9 +117345,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    BindingDelta.decode = function decode(reader, length, error) {
+                    BindingDelta.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.BindingDelta();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -112896,11 +117371,11 @@
                                     break;
                                 }
                             case 4: {
-                                    message.condition = $root.google.type.Expr.decode(reader, reader.uint32());
+                                    message.condition = $root.google.type.Expr.decode(reader, reader.uint32(), undefined, long + 1);
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -112931,9 +117406,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    BindingDelta.verify = function verify(message) {
+                    BindingDelta.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.action != null && message.hasOwnProperty("action"))
                             switch (message.action) {
                             default:
@@ -112950,7 +117429,7 @@
                             if (!$util.isString(message.member))
                                 return "member: string expected";
                         if (message.condition != null && message.hasOwnProperty("condition")) {
-                            var error = $root.google.type.Expr.verify(message.condition);
+                            var error = $root.google.type.Expr.verify(message.condition, long + 1);
                             if (error)
                                 return "condition." + error;
                         }
@@ -112965,9 +117444,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.BindingDelta} BindingDelta
                      */
-                    BindingDelta.fromObject = function fromObject(object) {
+                    BindingDelta.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.BindingDelta)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.BindingDelta();
                         switch (object.action) {
                         default:
@@ -112996,7 +117479,7 @@
                         if (object.condition != null) {
                             if (typeof object.condition !== "object")
                                 throw TypeError(".google.iam.v1.BindingDelta.condition: object expected");
-                            message.condition = $root.google.type.Expr.fromObject(object.condition);
+                            message.condition = $root.google.type.Expr.fromObject(object.condition, long + 1);
                         }
                         return message;
                     };
@@ -113099,7 +117582,7 @@
                     function AuditConfigDelta(properties) {
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                                if (properties[keys[i]] != null)
+                                if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                     this[keys[i]] = properties[keys[i]];
                     }
     
@@ -113194,9 +117677,13 @@
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    AuditConfigDelta.decode = function decode(reader, length, error) {
+                    AuditConfigDelta.decode = function decode(reader, length, error, long) {
                         if (!(reader instanceof $Reader))
                             reader = $Reader.create(reader);
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $Reader.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.AuditConfigDelta();
                         while (reader.pos < end) {
                             var tag = reader.uint32();
@@ -113220,7 +117707,7 @@
                                     break;
                                 }
                             default:
-                                reader.skipType(tag & 7);
+                                reader.skipType(tag & 7, long);
                                 break;
                             }
                         }
@@ -113251,9 +117738,13 @@
                      * @param {Object.<string,*>} message Plain object to verify
                      * @returns {string|null} `null` if valid, otherwise the reason why it is not
                      */
-                    AuditConfigDelta.verify = function verify(message) {
+                    AuditConfigDelta.verify = function verify(message, long) {
                         if (typeof message !== "object" || message === null)
                             return "object expected";
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            return "maximum nesting depth exceeded";
                         if (message.action != null && message.hasOwnProperty("action"))
                             switch (message.action) {
                             default:
@@ -113283,9 +117774,13 @@
                      * @param {Object.<string,*>} object Plain object
                      * @returns {google.iam.v1.AuditConfigDelta} AuditConfigDelta
                      */
-                    AuditConfigDelta.fromObject = function fromObject(object) {
+                    AuditConfigDelta.fromObject = function fromObject(object, long) {
                         if (object instanceof $root.google.iam.v1.AuditConfigDelta)
                             return object;
+                        if (long === undefined)
+                            long = 0;
+                        if (long > $util.recursionLimit)
+                            throw Error("maximum nesting depth exceeded");
                         var message = new $root.google.iam.v1.AuditConfigDelta();
                         switch (object.action) {
                         default:
@@ -113429,7 +117924,7 @@
                 function Expr(properties) {
                     if (properties)
                         for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
+                            if (properties[keys[i]] != null && keys[i] !== "__proto__")
                                 this[keys[i]] = properties[keys[i]];
                 }
     
@@ -113524,9 +118019,13 @@
                  * @throws {Error} If the payload is not a reader or valid buffer
                  * @throws {$protobuf.util.ProtocolError} If required fields are missing
                  */
-                Expr.decode = function decode(reader, length, error) {
+                Expr.decode = function decode(reader, length, error, long) {
                     if (!(reader instanceof $Reader))
                         reader = $Reader.create(reader);
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $Reader.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.type.Expr();
                     while (reader.pos < end) {
                         var tag = reader.uint32();
@@ -113550,7 +118049,7 @@
                                 break;
                             }
                         default:
-                            reader.skipType(tag & 7);
+                            reader.skipType(tag & 7, long);
                             break;
                         }
                     }
@@ -113581,9 +118080,13 @@
                  * @param {Object.<string,*>} message Plain object to verify
                  * @returns {string|null} `null` if valid, otherwise the reason why it is not
                  */
-                Expr.verify = function verify(message) {
+                Expr.verify = function verify(message, long) {
                     if (typeof message !== "object" || message === null)
                         return "object expected";
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        return "maximum nesting depth exceeded";
                     if (message.expression != null && message.hasOwnProperty("expression"))
                         if (!$util.isString(message.expression))
                             return "expression: string expected";
@@ -113607,9 +118110,13 @@
                  * @param {Object.<string,*>} object Plain object
                  * @returns {google.type.Expr} Expr
                  */
-                Expr.fromObject = function fromObject(object) {
+                Expr.fromObject = function fromObject(object, long) {
                     if (object instanceof $root.google.type.Expr)
                         return object;
+                    if (long === undefined)
+                        long = 0;
+                    if (long > $util.recursionLimit)
+                        throw Error("maximum nesting depth exceeded");
                     var message = new $root.google.type.Expr();
                     if (object.expression != null)
                         message.expression = String(object.expression);