_areturn() — langchain Function Reference

Architecture documentation for the _areturn() function in agent_iterator.py from the langchain codebase.

Function python AgentOrchestration AgentExcecutor calls 1 called by 2

Entity Profile

AgentOrchestration→ AgentExcecutor→ _areturn() — langchain Function Reference

Dependency Diagram

graph TD
  8e78f3ee_ca81_93a5_488f_7aad7e20bcbd["_areturn()"]
  1acdec4f_565f_ad87_eef0_de1e0c0a695f["AgentExecutorIterator"]
  8e78f3ee_ca81_93a5_488f_7aad7e20bcbd -->|defined in| 1acdec4f_565f_ad87_eef0_de1e0c0a695f
  39cd136f_d15d_8517_b858_2109fe79723e["_aprocess_next_step_output()"]
  39cd136f_d15d_8517_b858_2109fe79723e -->|calls| 8e78f3ee_ca81_93a5_488f_7aad7e20bcbd
  96b6284f_50eb_7f77_f278_57e27829da21["_astop()"]
  96b6284f_50eb_7f77_f278_57e27829da21 -->|calls| 8e78f3ee_ca81_93a5_488f_7aad7e20bcbd
  f9289611_94e3_3d85_5da2_ccb6948f473e["make_final_outputs()"]
  8e78f3ee_ca81_93a5_488f_7aad7e20bcbd -->|calls| f9289611_94e3_3d85_5da2_ccb6948f473e
  style 8e78f3ee_ca81_93a5_488f_7aad7e20bcbd fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/agents/agent_iterator.py lines 419–432

    async def _areturn(
        self,
        output: AgentFinish,
        run_manager: AsyncCallbackManagerForChainRun,
    ) -> AddableDict:
        """Return the final output of the async iterator."""
        returned_output = await self.agent_executor._areturn(  # noqa: SLF001
            output,
            self.intermediate_steps,
            run_manager=run_manager,
        )
        returned_output["messages"] = output.messages
        await run_manager.on_chain_end(returned_output)
        return self.make_final_outputs(returned_output, run_manager)