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FakeCallbackHandlerWithChatStart Class — langchain Architecture

Architecture documentation for the FakeCallbackHandlerWithChatStart class in callbacks.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  3689304a_ecf6_f526_b976_879c08589a71["FakeCallbackHandlerWithChatStart"]
  8adec285_7535_1bed_5947_2a523043e071["FakeCallbackHandler"]
  3689304a_ecf6_f526_b976_879c08589a71 -->|extends| 8adec285_7535_1bed_5947_2a523043e071
  b9553aad_b797_0a7b_73ed_8d05b0819c0f["BaseMessage"]
  3689304a_ecf6_f526_b976_879c08589a71 -->|extends| b9553aad_b797_0a7b_73ed_8d05b0819c0f
  c9ec0e10_1116_ed48_cb65_a2d7d41b2ec0["callbacks.py"]
  3689304a_ecf6_f526_b976_879c08589a71 -->|defined in| c9ec0e10_1116_ed48_cb65_a2d7d41b2ec0
  7fb7f48b_4e9b_ee84_3e6c_19401445e5e2["on_chat_model_start()"]
  3689304a_ecf6_f526_b976_879c08589a71 -->|method| 7fb7f48b_4e9b_ee84_3e6c_19401445e5e2

Relationship Graph

Source Code

libs/partners/groq/tests/unit_tests/fake/callbacks.py lines 266–277

class FakeCallbackHandlerWithChatStart(FakeCallbackHandler):
    def on_chat_model_start(
        self,
        serialized: dict[str, Any],
        messages: list[list[BaseMessage]],
        *,
        run_id: UUID,
        parent_run_id: UUID | None = None,
        **kwargs: Any,
    ) -> Any:
        assert all(isinstance(m, BaseMessage) for m in chain(*messages))
        self.on_chat_model_start_common()

Defined In

Extends

Source

Frequently Asked Questions

What is the FakeCallbackHandlerWithChatStart class?
FakeCallbackHandlerWithChatStart is a class in the langchain codebase, defined in libs/partners/groq/tests/unit_tests/fake/callbacks.py.
Where is FakeCallbackHandlerWithChatStart defined?
FakeCallbackHandlerWithChatStart is defined in libs/partners/groq/tests/unit_tests/fake/callbacks.py at line 266.
What does FakeCallbackHandlerWithChatStart extend?
FakeCallbackHandlerWithChatStart extends FakeCallbackHandler, BaseMessage.

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