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FailingPrimaryModel Class — langchain Architecture

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

Class python

Entity Profile

Dependency Diagram

graph TD
  36b5353a_9e52_6a25_4cef_2587b0b74eca["FailingPrimaryModel"]
  0f829642_e361_67a1_cbca_f82839bbbd31["GenericFakeChatModel"]
  36b5353a_9e52_6a25_4cef_2587b0b74eca -->|extends| 0f829642_e361_67a1_cbca_f82839bbbd31
  c6372e75_e4e3_ed20_8230_4be219762f0f["test_model_fallback.py"]
  36b5353a_9e52_6a25_4cef_2587b0b74eca -->|defined in| c6372e75_e4e3_ed20_8230_4be219762f0f
  859c0847_6e92_4f5e_98aa_7219e843aba7["_generate()"]
  36b5353a_9e52_6a25_4cef_2587b0b74eca -->|method| 859c0847_6e92_4f5e_98aa_7219e843aba7

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py lines 68–78

    class FailingPrimaryModel(GenericFakeChatModel):
        @override
        def _generate(
            self,
            messages: list[BaseMessage],
            stop: list[str] | None = None,
            run_manager: CallbackManagerForLLMRun | None = None,
            **kwargs: Any,
        ) -> ChatResult:
            msg = "Primary model failed"
            raise ValueError(msg)

Defined In

Extends

Source

Frequently Asked Questions

What is the FailingPrimaryModel class?
FailingPrimaryModel is a class in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py.
Where is FailingPrimaryModel defined?
FailingPrimaryModel is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_model_fallback.py at line 68.
What does FailingPrimaryModel extend?
FailingPrimaryModel extends GenericFakeChatModel.

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