init() — langchain Function Reference

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

Function python LangChainCore Runnables calls 1

Entity Profile

LangChainCore→ Runnables→ __init__() — langchain Function Reference

Dependency Diagram

graph TD
  f25836bc_a658_6517_6437_783f8ca392bc["__init__()"]
  17599172_8889_afc6_2237_4429f3439071["RunnableParallel"]
  f25836bc_a658_6517_6437_783f8ca392bc -->|defined in| 17599172_8889_afc6_2237_4429f3439071
  24b30490_4fa3_041b_f903_38cad0c9ae9b["coerce_to_runnable()"]
  f25836bc_a658_6517_6437_783f8ca392bc -->|calls| 24b30490_4fa3_041b_f903_38cad0c9ae9b
  style f25836bc_a658_6517_6437_783f8ca392bc fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/base.py lines 3651–3675

    def __init__(
        self,
        steps__: Mapping[
            str,
            Runnable[Input, Any]
            | Callable[[Input], Any]
            | Mapping[str, Runnable[Input, Any] | Callable[[Input], Any]],
        ]
        | None = None,
        **kwargs: Runnable[Input, Any]
        | Callable[[Input], Any]
        | Mapping[str, Runnable[Input, Any] | Callable[[Input], Any]],
    ) -> None:
        """Create a `RunnableParallel`.

        Args:
            steps__: The steps to include.
            **kwargs: Additional steps to include.

        """
        merged = {**steps__} if steps__ is not None else {}
        merged.update(kwargs)
        super().__init__(
            steps__={key: coerce_to_runnable(r) for key, r in merged.items()}
        )