Allow _new_session to take in kwargs

Author: arunkannawadi

scholarly/_navigator.py

@@ -74,12 +74,12 @@ def use_proxy(self, pg1: ProxyGenerator, pg2: ProxyGenerator = None):
         self._session1 = self.pm1.get_session()
         self._session2 = self.pm2.get_session()
 
-    def _new_session(self, premium=True):
+    def _new_session(self, premium=True, **kwargs):
         self.got_403 = False
         if premium:
-            self._session1 = self.pm1._new_session()
+            self._session1 = self.pm1._new_session(**kwargs)
         else:
-            self._session2 = self.pm2._new_session()
+            self._session2 = self.pm2._new_session(**kwargs)
 
 
     def _get_page(self, pagerequest: str, premium: bool = False) -> str:

scholarly/_proxy_generator.py

@@ -205,7 +205,7 @@ def _use_proxy(self, http: str, https: str = None) -> bool:
 
         if self._proxy_works:
             self._proxies = proxies
-            self._new_session()
+            self._new_session(proxies=proxies)
 
         return self._proxy_works
 
@@ -444,8 +444,9 @@ def _handle_captcha2(self, url):
 
         return self._session
 
-    def _new_session(self):
+    def _new_session(self, **kwargs):
         init_kwargs = {}
+        init_kwargs.update(kwargs)
         proxies = {}
         if self._session:
             proxies = self._proxies