_ainvoke() — langchain Function Reference

Architecture documentation for the _ainvoke() function in passthrough.py from the langchain codebase.

Function python LangChainCore Runnables calls 3 called by 1

Entity Profile

LangChainCore→ Runnables→ _ainvoke() — langchain Function Reference

Dependency Diagram

graph TD
  6d319a01_0b1e_1be7_7e50_60d7aa44abbb["_ainvoke()"]
  e893b6ae_1c28_41f1_aa8b_a66d0f779312["RunnableAssign"]
  6d319a01_0b1e_1be7_7e50_60d7aa44abbb -->|defined in| e893b6ae_1c28_41f1_aa8b_a66d0f779312
  355d2fce_215e_3c1a_df77_1bc43c1f6aae["_ainvoke()"]
  355d2fce_215e_3c1a_df77_1bc43c1f6aae -->|calls| 6d319a01_0b1e_1be7_7e50_60d7aa44abbb
  355d2fce_215e_3c1a_df77_1bc43c1f6aae["_ainvoke()"]
  6d319a01_0b1e_1be7_7e50_60d7aa44abbb -->|calls| 355d2fce_215e_3c1a_df77_1bc43c1f6aae
  933ccc14_844d_c42a_d3ca_33f04cdfba48["assign()"]
  6d319a01_0b1e_1be7_7e50_60d7aa44abbb -->|calls| 933ccc14_844d_c42a_d3ca_33f04cdfba48
  18fc0880_a883_21ed_9379_43927119eef0["ainvoke()"]
  6d319a01_0b1e_1be7_7e50_60d7aa44abbb -->|calls| 18fc0880_a883_21ed_9379_43927119eef0
  style 6d319a01_0b1e_1be7_7e50_60d7aa44abbb fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/passthrough.py lines 509–527

    async def _ainvoke(
        self,
        value: dict[str, Any],
        run_manager: AsyncCallbackManagerForChainRun,
        config: RunnableConfig,
        **kwargs: Any,
    ) -> dict[str, Any]:
        if not isinstance(value, dict):
            msg = "The input to RunnablePassthrough.assign() must be a dict."
            raise ValueError(msg)  # noqa: TRY004

        return {
            **value,
            **await self.mapper.ainvoke(
                value,
                patch_config(config, callbacks=run_manager.get_child()),
                **kwargs,
            ),
        }