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ErrorModel Class — langchain Architecture

Architecture documentation for the ErrorModel class in test_summarization.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  a6eb5a5f_d590_c4d2_6405_d147e8065b15["ErrorModel"]
  48aa29b8_65e7_522f_a445_a441eeb6baff["BaseChatModel"]
  a6eb5a5f_d590_c4d2_6405_d147e8065b15 -->|extends| 48aa29b8_65e7_522f_a445_a441eeb6baff
  1911a463_b67d_0301_5ef1_5c535dafc14a["test_summarization.py"]
  a6eb5a5f_d590_c4d2_6405_d147e8065b15 -->|defined in| 1911a463_b67d_0301_5ef1_5c535dafc14a
  c49089c8_931c_e6d8_8582_db983175c0ff["invoke()"]
  a6eb5a5f_d590_c4d2_6405_d147e8065b15 -->|method| c49089c8_931c_e6d8_8582_db983175c0ff
  665fe751_1490_e51d_0cc3_a50952299699["_generate()"]
  a6eb5a5f_d590_c4d2_6405_d147e8065b15 -->|method| 665fe751_1490_e51d_0cc3_a50952299699
  ab0aca99_bb4f_c184_52cd_f1671ad3aa74["_llm_type()"]
  a6eb5a5f_d590_c4d2_6405_d147e8065b15 -->|method| ab0aca99_bb4f_c184_52cd_f1671ad3aa74

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_summarization.py lines 185–210

    class ErrorModel(BaseChatModel):
        @override
        def invoke(
            self,
            input: LanguageModelInput,
            config: RunnableConfig | None = None,
            *,
            stop: list[str] | None = None,
            **kwargs: Any,
        ) -> AIMessage:
            msg = "Model error"
            raise ValueError(msg)

        @override
        def _generate(
            self,
            messages: list[BaseMessage],
            stop: list[str] | None = None,
            run_manager: CallbackManagerForLLMRun | None = None,
            **kwargs: Any,
        ) -> ChatResult:
            return ChatResult(generations=[ChatGeneration(message=AIMessage(content="Summary"))])

        @property
        def _llm_type(self) -> str:
            return "mock"

Defined In

Extends

Source

Frequently Asked Questions

What is the ErrorModel class?
ErrorModel is a class in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_summarization.py.
Where is ErrorModel defined?
ErrorModel is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_summarization.py at line 185.
What does ErrorModel extend?
ErrorModel extends BaseChatModel.

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