flatten_dict

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

Flatten 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)