callbacks

Callback handlers allow listening to events in LangChain.

Class hierarchy:

BaseCallbackHandler --> <name>CallbackHandler  # Example: AimCallbackHandler

Classes

callbacks.streaming_aiter.AsyncIteratorCallbackHandler()	Callback handler that returns an async iterator.
callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler(*)	Callback handler that returns an async iterator.
callbacks.streaming_stdout_final_only.FinalStreamingStdOutCallbackHandler(*)	Callback handler for streaming in agents.
callbacks.tracers.logging.LoggingCallbackHandler(logger)	Tracer that logs via the input Logger.