Zander Chase 4ee47926ca Add on_chat_message_start (#4499) ... ### Add on_chat_message_start to callback manager and base tracer Goal: trace messages directly to permit reloading as chat messages (store in an integration-agnostic way) Add an `on_chat_message_start` method. Fall back to `on_llm_start()` for handlers that don't have it implemented. Does so in a non-backwards-compat breaking way (for now)		2023-05-11 11:06:39 -07:00
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__init__.py	add tracing support to langchain (#741)	2023-01-26 17:38:13 -08:00
test_tracer.py	Add on_chat_message_start (#4499)	2023-05-11 11:06:39 -07:00