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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_indexes_from_base(self):
 """Get array of indexes from the base array, as if this raw data were indexed. """

        if self.is_indexed:
            return np.copy(self.order[i])
        if self.data.base is None:
            i = 0
        else:
            i = self.get_raw_index(0)
        return np.arange(i, i + len(self), dtype=np.uint32)