CategoricalIndex.insert(loc, item)

CategoricalIndex.shift(periods=1, freq=None)

CategoricalIndex.values return the underlying data, which is a Categorical

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

CategoricalIndex.map(mapper)

CategoricalIndex.is_mixed()

CategoricalIndex.inferred_type

CategoricalIndex.is_lexsorted_for_tuple(tup)

CategoricalIndex.get_slice_bound(label, side, kind)

CategoricalIndex.get_indexer_non_unique(target)