langchain.callbacks.utils.flatten_dict

langchain.callbacks.utils.flatten_dict(nested_dict: Dict[str, Any], parent_key: str = '', sep: str = '_') Dict[str, Any][source]

Flattens a nested dictionary into a flat dictionary.

Parameters
  • nested_dict (dict) – The nested dictionary to flatten.

  • parent_key (str) – The prefix to prepend to the keys of the flattened dict.

  • sep (str) – The separator to use between the parent key and the key of the flattened dictionary.

Returns

A flat dictionary.

Return type

(dict)