MultiIndex.get_duplicates()

DataFrame.combine_first(other)

TimedeltaIndex.sort(*args, **kwargs)

CategoricalIndex.join(other, how='left', level=None, return_indexers=False)

class pandas.Grouper(key=None, level=None, freq=None, axis=0, sort=False)

Index.asof_locs(where, mask)

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

Index.get_values()

Series.real

TimedeltaIndex.fillna(value=None, downcast=None)