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AlwaysFailingModel Class — langchain Architecture

Architecture documentation for the AlwaysFailingModel class in test_wrap_model_call.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  c58efdec_0f54_9d92_0ca3_27c97af859f1["AlwaysFailingModel"]
  48aa29b8_65e7_522f_a445_a441eeb6baff["BaseChatModel"]
  c58efdec_0f54_9d92_0ca3_27c97af859f1 -->|extends| 48aa29b8_65e7_522f_a445_a441eeb6baff
  573473e5_eb93_a7d7_84ba_c975071c09af["test_wrap_model_call.py"]
  c58efdec_0f54_9d92_0ca3_27c97af859f1 -->|defined in| 573473e5_eb93_a7d7_84ba_c975071c09af
  3d23218f_eb98_c8ac_beda_1c243d00b0ae["_generate()"]
  c58efdec_0f54_9d92_0ca3_27c97af859f1 -->|method| 3d23218f_eb98_c8ac_beda_1c243d00b0ae
  6401b990_ccfc_ead2_188f_4029d38526e5["_llm_type()"]
  c58efdec_0f54_9d92_0ca3_27c97af859f1 -->|method| 6401b990_ccfc_ead2_188f_4029d38526e5

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py lines 238–254

        class AlwaysFailingModel(BaseChatModel):
            """Model that always fails."""

            @override
            def _generate(
                self,
                messages: list[BaseMessage],
                stop: list[str] | None = None,
                run_manager: CallbackManagerForLLMRun | None = None,
                **kwargs: Any,
            ) -> ChatResult:
                msg = "Always fails"
                raise ValueError(msg)

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

Defined In

Extends

Source

Frequently Asked Questions

What is the AlwaysFailingModel class?
AlwaysFailingModel is a class in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py.
Where is AlwaysFailingModel defined?
AlwaysFailingModel is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py at line 238.
What does AlwaysFailingModel extend?
AlwaysFailingModel extends BaseChatModel.

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