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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_data(self) -> BaseFrameManager: """Perform the map step Returns: A BaseFrameManager object. """


        def iloc(partition, row_internal_indices, col_internal_indices):
            return partition.iloc[row_internal_indices, col_internal_indices]

        masked_data = self.parent_data.apply_func_to_indices_both_axis(
            func=iloc,
            row_indices=self.index_map.values,
            col_indices=self.columns_map.values,
            lazy=False,
            keep_remaining=False,
        )
        return masked_data