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AsyncAlwaysFailingModel Class — langchain Architecture

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

Class python

Entity Profile

Dependency Diagram

graph TD
  59f3f3f3_b83f_7d9b_44e1_9368c664463e["AsyncAlwaysFailingModel"]
  0f829642_e361_67a1_cbca_f82839bbbd31["GenericFakeChatModel"]
  59f3f3f3_b83f_7d9b_44e1_9368c664463e -->|extends| 0f829642_e361_67a1_cbca_f82839bbbd31
  c6372e75_e4e3_ed20_8230_4be219762f0f["test_model_fallback.py"]
  59f3f3f3_b83f_7d9b_44e1_9368c664463e -->|defined in| c6372e75_e4e3_ed20_8230_4be219762f0f
  cd9ad747_92f5_6068_b906_3b00289f7931["_agenerate()"]
  59f3f3f3_b83f_7d9b_44e1_9368c664463e -->|method| cd9ad747_92f5_6068_b906_3b00289f7931

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py lines 248–258

    class AsyncAlwaysFailingModel(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 AsyncAlwaysFailingModel class?
AsyncAlwaysFailingModel is a class in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py.
Where is AsyncAlwaysFailingModel defined?
AsyncAlwaysFailingModel is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py at line 248.
What does AsyncAlwaysFailingModel extend?
AsyncAlwaysFailingModel extends GenericFakeChatModel.

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