_call() — langchain Function Reference

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

Function python AgentOrchestration ClassicChains called by 1

Entity Profile

AgentOrchestration→ ClassicChains→ _call() — langchain Function Reference

Dependency Diagram

graph TD
  70ced93c_1678_5151_e7bb_a3789f5e33b1["_call()"]
  f3cef70e_11b0_61c9_7ec0_7308f4b45056["Chain"]
  70ced93c_1678_5151_e7bb_a3789f5e33b1 -->|defined in| f3cef70e_11b0_61c9_7ec0_7308f4b45056
  cbab652e_92a7_bf56_f96d_801fd5f6dacd["invoke()"]
  cbab652e_92a7_bf56_f96d_801fd5f6dacd -->|calls| 70ced93c_1678_5151_e7bb_a3789f5e33b1
  style 70ced93c_1678_5151_e7bb_a3789f5e33b1 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/chains/base.py lines 318–338

    def _call(
        self,
        inputs: builtins.dict[str, Any],
        run_manager: CallbackManagerForChainRun | None = None,
    ) -> builtins.dict[str, Any]:
        """Execute the chain.

        This is a private method that is not user-facing. It is only called within
            `Chain.__call__`, which is the user-facing wrapper method that handles
            callbacks configuration and some input/output processing.

        Args:
            inputs: A dict of named inputs to the chain. Assumed to contain all inputs
                specified in `Chain.input_keys`, including any inputs added by memory.
            run_manager: The callbacks manager that contains the callback handlers for
                this run of the chain.

        Returns:
            A dict of named outputs. Should contain all outputs specified in
                `Chain.output_keys`.
        """