pandas.DataFrame.reset_index

DataFrame.reset_index(level=None, drop=False, inplace=False, col_level=0, col_fill='')

For DataFrame with multi-level index, return new DataFrame with labeling information in the columns under the index names, defaulting to ‘level_0’, ‘level_1’, etc. if any are None. For a standard index, the index name will be used (if set), otherwise a default ‘index’ or ‘level_0’ (if ‘index’ is already taken) will be used.

level : int, str, tuple, or list, default None
Only remove the given levels from the index. Removes all levels by default
drop : boolean, default False
Do not try to insert index into dataframe columns. This resets the index to the default integer index.
inplace : boolean, default False
Modify the DataFrame in place (do not create a new object)
col_level : int or str, default 0
If the columns have multiple levels, determines which level the labels are inserted into. By default it is inserted into the first level.
col_fill : object, default ‘’
If the columns have multiple levels, determines how the other levels are named. If None then the index name is repeated.

resetted : DataFrame