astream() — langchain Function Reference

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

Function python LangChainCore LanguageModelBase calls 1

Entity Profile

LangChainCore→ LanguageModelBase→ astream() — langchain Function Reference

Dependency Diagram

graph TD
  4cddfe50_3ea3_48e4_0fa3_e9bfbe44165a["astream()"]
  74f697e6_2555_becc_640e_6f41ea707eba["_ConfigurableModel"]
  4cddfe50_3ea3_48e4_0fa3_e9bfbe44165a -->|defined in| 74f697e6_2555_becc_640e_6f41ea707eba
  4d79fd76_22aa_8160_64a3_c62bd0bfe875["_model()"]
  4cddfe50_3ea3_48e4_0fa3_e9bfbe44165a -->|calls| 4d79fd76_22aa_8160_64a3_c62bd0bfe875
  style 4cddfe50_3ea3_48e4_0fa3_e9bfbe44165a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/langchain/chat_models/base.py lines 738–745

    async def astream(
        self,
        input: LanguageModelInput,
        config: RunnableConfig | None = None,
        **kwargs: Any | None,
    ) -> AsyncIterator[Any]:
        async for x in self._model(config).astream(input, config=config, **kwargs):
            yield x