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)