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

CategoricalIndex.fillna(value, downcast=None)

CategoricalIndex.item()

CategoricalIndex.set_categories(*args, **kwargs)

CategoricalIndex.is_categorical()

CategoricalIndex.identical(other)

CategoricalIndex.is_floating()

CategoricalIndex.ordered

CategoricalIndex.dtype_str = None

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