create_tool_calling_agent raises ValueError: This function requires a .bind_tools method be implemented on...
The root cause: with_fallbacks wraps the model in a Runnable that hid bind_tools, so the agent factory could not find the method. A maintainer linked the fix in PR #22139, which forwards bind_tools through fallbacks: upgrade to langchain-core>=0.2.2. For the AzureChatOpenAI variant, the fix was importing the model fro…
Problem outcome: unknown