Series.__iter__()

MultiIndex.argmin(axis=None)

TimedeltaIndex.groupby(values)

CategoricalIndex.shape return a tuple of the shape of the underlying data

TimedeltaIndex.dtype_str = None

Series.is_unique Return boolean if values in the object are unique

DataFrame.mask(cond, other=nan, inplace=False, axis=None, level=None, try_cast=False, raise_on_error=True)

DatetimeIndex.item()

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

DataFrame.reindex_like(other, method=None, copy=True, limit=None, tolerance=None)