Index.get_value(series, key)

Index.to_datetime(dayfirst=False)

Index.name = None

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

Index.all(*args, **kwargs)

Index.is_monotonic alias for is_monotonic_increasing (deprecated)

Index.T return the transpose, which is by definition self

Index.intersection(other)

Index.is_boolean()

Index.is_unique = None