CategoricalIndex.itemsize return the size of the dtype of the item of the underlying data

CategoricalIndex.is_categorical()

CategoricalIndex.set_categories(*args, **kwargs)

CategoricalIndex.is_monotonic_increasing return if the index is monotonic increasing (only

CategoricalIndex.remove_categories(*args, **kwargs)

CategoricalIndex.max(*args, **kwargs)

CategoricalIndex.append(other)

CategoricalIndex.remove_unused_categories(*args, **kwargs)

CategoricalIndex.is_all_dates = None

CategoricalIndex.is_object()