langchain

4c132b4c - community: fix openai streaming throws 'AIMessageChunk' object has no attribute 'text' (#18006)

community: fix openai streaming throws 'AIMessageChunk' object has no attribute 'text' (#18006) After upgrading langchain-community to 0.0.22, it's not possible to use openai from the community package with streaming=True ``` File "/home/runner/work/ragstack-ai/ragstack-ai/ragstack-e2e-tests/.tox/langchain/lib/python3.11/site-packages/langchain_community/chat_models/openai.py", line 434, in _generate return generate_from_stream(stream_iter) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/runner/work/ragstack-ai/ragstack-ai/ragstack-e2e-tests/.tox/langchain/lib/python3.11/site-packages/langchain_core/language_models/chat_models.py", line 65, in generate_from_stream for chunk in stream: File "/home/runner/work/ragstack-ai/ragstack-ai/ragstack-e2e-tests/.tox/langchain/lib/python3.11/site-packages/langchain_community/chat_models/openai.py", line 418, in _stream run_manager.on_llm_new_token(chunk.text, chunk=cg_chunk) ^^^^^^^^^^ AttributeError: 'AIMessageChunk' object has no attribute 'text' ``` Fix regression of https://github.com/langchain-ai/langchain/pull/17907 **Twitter handle:** @nicoloboschi