call_func_with_variable_args() — langchain Function Reference

Architecture documentation for the call_func_with_variable_args() function in config.py from the langchain codebase.

Function python CoreAbstractions Serialization calls 1

Entity Profile

CoreAbstractions→ Serialization→ call_func_with_variable_args() — langchain Function Reference

Dependency Diagram

graph TD
  7079a884_2cef_5b12_cc79_e93a4668dcc5["call_func_with_variable_args()"]
  4d16987d_fe07_22bb_f46d_7daeb24e0367["config.py"]
  7079a884_2cef_5b12_cc79_e93a4668dcc5 -->|defined in| 4d16987d_fe07_22bb_f46d_7daeb24e0367
  cd508af1_56d4_d79e_3d0e_5e0f0df7aaa2["patch_config()"]
  7079a884_2cef_5b12_cc79_e93a4668dcc5 -->|calls| cd508af1_56d4_d79e_3d0e_5e0f0df7aaa2
  style 7079a884_2cef_5b12_cc79_e93a4668dcc5 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/config.py lines 423–452

def call_func_with_variable_args(
    func: Callable[[Input], Output]
    | Callable[[Input, RunnableConfig], Output]
    | Callable[[Input, CallbackManagerForChainRun], Output]
    | Callable[[Input, CallbackManagerForChainRun, RunnableConfig], Output],
    input: Input,
    config: RunnableConfig,
    run_manager: CallbackManagerForChainRun | None = None,
    **kwargs: Any,
) -> Output:
    """Call function that may optionally accept a run_manager and/or config.

    Args:
        func: The function to call.
        input: The input to the function.
        config: The config to pass to the function.
        run_manager: The run manager to pass to the function.
        **kwargs: The keyword arguments to pass to the function.

    Returns:
        The output of the function.
    """
    if accepts_config(func):
        if run_manager is not None:
            kwargs["config"] = patch_config(config, callbacks=run_manager.get_child())
        else:
            kwargs["config"] = config
    if run_manager is not None and accepts_run_manager(func):
        kwargs["run_manager"] = run_manager
    return func(input, **kwargs)  # type: ignore[call-arg]