DatetimeIndex.dtype = None

DatetimeIndex.tz_localize(*args, **kwargs)

DatetimeIndex.to_julian_date()

DataFrame.kurtosis(axis=None, skipna=None, level=None, numeric_only=None, **kwargs)

DataFrame.idxmax(axis=0, skipna=True)

CategoricalIndex.factorize(sort=False, na_sentinel=-1)

DataFrame.div(other, axis='columns', level=None, fill_value=None)

CategoricalIndex.base return the base object if the memory of the underlying data is shared

Styler.clear()

TimedeltaIndex.nbytes return the number of bytes in the underlying data