Index.searchsorted(key, side='left', sorter=None)

Index.duplicated(*args, **kwargs)

Index.nbytes return the number of bytes in the underlying data

Index.argmin(axis=None)

Index.is_categorical()

Index.drop(labels, errors='raise')

Index.isin(values, level=None)

Index.is_object()

Index.order(return_indexer=False, ascending=True)

Index.memory_usage(deep=False)