astream() — langchain Function Reference

Architecture documentation for the astream() function in configurable.py from the langchain codebase.

Function python LangChainCore Runnables calls 1

Entity Profile

LangChainCore→ Runnables→ astream() — langchain Function Reference

Dependency Diagram

graph TD
  67f0ce39_fb73_f98a_31eb_bdb9a8fa02b6["astream()"]
  018f968f_f1d1_6f85_05f3_0ff4abc12150["DynamicRunnable"]
  67f0ce39_fb73_f98a_31eb_bdb9a8fa02b6 -->|defined in| 018f968f_f1d1_6f85_05f3_0ff4abc12150
  e71e4d88_aaa7_d3d0_06ac_43f60d5cd48a["prepare()"]
  67f0ce39_fb73_f98a_31eb_bdb9a8fa02b6 -->|calls| e71e4d88_aaa7_d3d0_06ac_43f60d5cd48a
  style 67f0ce39_fb73_f98a_31eb_bdb9a8fa02b6 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/configurable.py lines 248–256

    async def astream(
        self,
        input: Input,
        config: RunnableConfig | None = None,
        **kwargs: Any | None,
    ) -> AsyncIterator[Output]:
        runnable, config = self.prepare(config)
        async for chunk in runnable.astream(input, config, **kwargs):
            yield chunk