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AsyncFailingModel Class — langchain Architecture

Architecture documentation for the AsyncFailingModel class in test_model_fallback.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  3b9070ac_80f2_01b8_1b19_9cafa6e00790["AsyncFailingModel"]
  0f829642_e361_67a1_cbca_f82839bbbd31["GenericFakeChatModel"]
  3b9070ac_80f2_01b8_1b19_9cafa6e00790 -->|extends| 0f829642_e361_67a1_cbca_f82839bbbd31
  c6372e75_e4e3_ed20_8230_4be219762f0f["test_model_fallback.py"]
  3b9070ac_80f2_01b8_1b19_9cafa6e00790 -->|defined in| c6372e75_e4e3_ed20_8230_4be219762f0f
  fbf5bfd9_c2e9_3c12_5546_b0b4c507d00a["_agenerate()"]
  3b9070ac_80f2_01b8_1b19_9cafa6e00790 -->|method| fbf5bfd9_c2e9_3c12_5546_b0b4c507d00a

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py lines 215–225

    class AsyncFailingModel(GenericFakeChatModel):
        @override
        async def _agenerate(
            self,
            messages: list[BaseMessage],
            stop: list[str] | None = None,
            run_manager: AsyncCallbackManagerForLLMRun | None = None,
            **kwargs: Any,
        ) -> ChatResult:
            msg = "Model failed"
            raise ValueError(msg)

Defined In

Extends

Source

Frequently Asked Questions

What is the AsyncFailingModel class?
AsyncFailingModel is a class in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py.
Where is AsyncFailingModel defined?
AsyncFailingModel is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py at line 215.
What does AsyncFailingModel extend?
AsyncFailingModel extends GenericFakeChatModel.

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