on_stream_event(
self,
event: MessagesData,
*,
run_id: UUID,
parent_run_id: UUID Run on each protocol event produced by astream_events(version="v3").
See :meth:LLMManagerMixin.on_stream_event for the full contract.
Fires once per MessagesData event at event granularity, uniformly
across native and compat-bridge providers, and is purely additive
to the existing on_chat_model_start / on_llm_end /
on_llm_error callbacks.
The tags.
Additional keyword arguments.