CategoricalIndex.data return the data pointer of the underlying data
CategoricalIndex.equals(other)
CategoricalIndex.dtype = None
CategoricalIndex.any(other=None)
CategoricalIndex.is_numeric()
CategoricalIndex.shift(periods=1, freq=None)
CategoricalIndex.slice_indexer(start=None, end=None, step=None, kind=None)
CategoricalIndex.repeat(n, *args, **kwargs)
CategoricalIndex.T return the transpose, which is by definition self
CategoricalIndex.names
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