langchain

6b589439 - community[patch]: Invoke callback prior to yielding token (#18288)

community[patch]: Invoke callback prior to yielding token (#18288) ## PR title community[patch]: Invoke callback prior to yielding PR message Description: Invoke on_llm_new_token callback prior to yielding token in _stream and _astream methods. Issue: https://github.com/langchain-ai/langchain/issues/16913 Dependencies: None Twitter handle: None