CategoricalIndex.shape return a tuple of the shape of the underlying data
CategoricalIndex.ordered
CategoricalIndex.is_object()
CategoricalIndex.append(other)
CategoricalIndex.is_monotonic_increasing return if the index is monotonic increasing (only
CategoricalIndex.tolist()
CategoricalIndex.str()
CategoricalIndex.is_categorical()
CategoricalIndex.dtype_str = None
CategoricalIndex.factorize(sort=False, na_sentinel=-1)
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