get_input_schema() — langchain Function Reference

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

Function python LangChainCore Runnables called by 1

Entity Profile

LangChainCore→ Runnables→ get_input_schema() — langchain Function Reference

Dependency Diagram

graph TD
  19a9f612_029a_748a_531c_4fc5b8ba37bd["get_input_schema()"]
  e893b6ae_1c28_41f1_aa8b_a66d0f779312["RunnableAssign"]
  19a9f612_029a_748a_531c_4fc5b8ba37bd -->|defined in| e893b6ae_1c28_41f1_aa8b_a66d0f779312
  eb34dd0d_547a_c34d_714b_0e5988d02d4a["get_output_schema()"]
  eb34dd0d_547a_c34d_714b_0e5988d02d4a -->|calls| 19a9f612_029a_748a_531c_4fc5b8ba37bd
  style 19a9f612_029a_748a_531c_4fc5b8ba37bd fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/passthrough.py lines 429–435

    def get_input_schema(self, config: RunnableConfig | None = None) -> type[BaseModel]:
        map_input_schema = self.mapper.get_input_schema(config)
        if not issubclass(map_input_schema, RootModel):
            # ie. it's a dict
            return map_input_schema

        return super().get_input_schema(config)