stream() — langchain Function Reference

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

Function python LangChainCore Runnables calls 2 called by 2

Entity Profile

LangChainCore→ Runnables→ stream() — langchain Function Reference

Dependency Diagram

graph TD
  9fc793b3_b726_058a_aebb_ca81faf79b43["stream()"]
  e893b6ae_1c28_41f1_aa8b_a66d0f779312["RunnableAssign"]
  9fc793b3_b726_058a_aebb_ca81faf79b43 -->|defined in| e893b6ae_1c28_41f1_aa8b_a66d0f779312
  3e9c06ec_de75_0159_daf0_82c2499729cd["stream()"]
  3e9c06ec_de75_0159_daf0_82c2499729cd -->|calls| 9fc793b3_b726_058a_aebb_ca81faf79b43
  d947aa85_3ece_1be3_71e0_d9e8f04de78b["stream()"]
  d947aa85_3ece_1be3_71e0_d9e8f04de78b -->|calls| 9fc793b3_b726_058a_aebb_ca81faf79b43
  6b634a0f_8373_1838_7f85_ec4585108419["transform()"]
  9fc793b3_b726_058a_aebb_ca81faf79b43 -->|calls| 6b634a0f_8373_1838_7f85_ec4585108419
  3e9c06ec_de75_0159_daf0_82c2499729cd["stream()"]
  9fc793b3_b726_058a_aebb_ca81faf79b43 -->|calls| 3e9c06ec_de75_0159_daf0_82c2499729cd
  style 9fc793b3_b726_058a_aebb_ca81faf79b43 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/passthrough.py lines 649–655

    def stream(
        self,
        input: dict[str, Any],
        config: RunnableConfig | None = None,
        **kwargs: Any,
    ) -> Iterator[dict[str, Any]]:
        return self.transform(iter([input]), config, **kwargs)