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# `langchain_core.runnables.config`.get_config_list

langchain_core.runnables.config.get_config_list(config: Optional[Union[RunnableConfig, List[RunnableConfig]]], length: int) → List[RunnableConfig]

  Get a list of configs from a single config or a list of configs.

  > It is useful for subclasses overriding batch() or abatch().

  Parameters

    - config (Optional[Union[RunnableConfig, List[RunnableConfig]]]) – The config or list of configs.

    - length (int) – The length of the list.

  Returns

    The list of configs.

  Return type

    List[RunnableConfig]

  Raises

    ValueError – If the length of the list is not equal to the length of the inputs.