_generate() — langchain Function Reference

Architecture documentation for the _generate() function in test_wrap_model_call.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ _generate() — langchain Function Reference

Dependency Diagram

graph TD
  2827e883_90a0_f959_9ef5_8aa465042200["_generate()"]
  ee1b6e3f_02d1_ad2a_b6f4_439040bbf10d["FailFirstSucceedSecond"]
  2827e883_90a0_f959_9ef5_8aa465042200 -->|defined in| ee1b6e3f_02d1_ad2a_b6f4_439040bbf10d
  style 2827e883_90a0_f959_9ef5_8aa465042200 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_wrap_model_call.py lines 1581–1592

            def _generate(
                self,
                messages: list[BaseMessage],
                stop: list[str] | None = None,
                run_manager: CallbackManagerForLLMRun | None = None,
                **kwargs: Any,
            ) -> ChatResult:
                call_count["value"] += 1
                if call_count["value"] == 1:
                    msg = "First fails"
                    raise ValueError(msg)
                return super()._generate(messages, **kwargs)