DatetimeIndex.dropna(how='any')

TimedeltaIndex.get_values()

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

Index.is_(other)

SeriesGroupBy.value_counts(normalize=False, sort=True, ascending=False, bins=None, dropna=True)

TimedeltaIndex.where(cond, other=None)

Series.groupby(by=None, axis=0, level=None, as_index=True, sort=True, group_keys=True, squeeze=False, **kwargs)

TimedeltaIndex.reindex(target, method=None, level=None, limit=None, tolerance=None)

DataFrame.any(axis=None, bool_only=None, skipna=None, level=None, **kwargs)

Rolling.corr(other=None, pairwise=None, **kwargs)