InputType() — langchain Function Reference

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

Function python LangChainCore Runnables

Entity Profile

LangChainCore→ Runnables→ InputType() — langchain Function Reference

Dependency Diagram

graph TD
  e86f779c_3564_e516_1fa8_15cd22567cae["InputType()"]
  8e601be2_5eac_8426_f30d_f1ed37138bd8["RunnableGenerator"]
  e86f779c_3564_e516_1fa8_15cd22567cae -->|defined in| 8e601be2_5eac_8426_f30d_f1ed37138bd8
  style e86f779c_3564_e516_1fa8_15cd22567cae fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/base.py lines 4232–4241

    def InputType(self) -> Any:
        func = getattr(self, "_transform", None) or self._atransform
        try:
            params = inspect.signature(func).parameters
            first_param = next(iter(params.values()), None)
            if first_param and first_param.annotation != inspect.Parameter.empty:
                return getattr(first_param.annotation, "__args__", (Any,))[0]
        except ValueError:
            pass
        return Any