Fix unhelpful error message for malformed JSON in streaming tool use#1335

Christian-Sidak wants to merge 2 commits intoanthropics:mainanthropics/anthropic-sdk-python:mainfrom

Christian-Sidak:fix/async-memory-tool-docstringChristian-Sidak/anthropic-sdk-python:fix/async-memory-tool-docstringCopy head branch name to clipboard