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AsyncFailOnceThenSucceed Class — langchain Architecture

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

Class python

Entity Profile

Dependency Diagram

graph TD
  f2e45977_af64_b3bf_b95b_e2ed76bc7f48["AsyncFailOnceThenSucceed"]
  0f829642_e361_67a1_cbca_f82839bbbd31["GenericFakeChatModel"]
  f2e45977_af64_b3bf_b95b_e2ed76bc7f48 -->|extends| 0f829642_e361_67a1_cbca_f82839bbbd31
  573473e5_eb93_a7d7_84ba_c975071c09af["test_wrap_model_call.py"]
  f2e45977_af64_b3bf_b95b_e2ed76bc7f48 -->|defined in| 573473e5_eb93_a7d7_84ba_c975071c09af
  76f9c2cf_408e_f96a_c3ed_7090a3a6c165["_agenerate()"]
  f2e45977_af64_b3bf_b95b_e2ed76bc7f48 -->|method| 76f9c2cf_408e_f96a_c3ed_7090a3a6c165

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py lines 1409–1422

        class AsyncFailOnceThenSucceed(GenericFakeChatModel):
            @override
            async def _agenerate(
                self,
                messages: list[BaseMessage],
                stop: list[str] | None = None,
                run_manager: AsyncCallbackManagerForLLMRun | None = None,
                **kwargs: Any,
            ) -> ChatResult:
                call_count["value"] += 1
                if call_count["value"] == 1:
                    msg = "First async call fails"
                    raise ValueError(msg)
                return await super()._agenerate(messages, **kwargs)

Defined In

Extends

Source

Frequently Asked Questions

What is the AsyncFailOnceThenSucceed class?
AsyncFailOnceThenSucceed 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 AsyncFailOnceThenSucceed defined?
AsyncFailOnceThenSucceed is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py at line 1409.
What does AsyncFailOnceThenSucceed extend?
AsyncFailOnceThenSucceed extends GenericFakeChatModel.

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