Inter-data operations (e.g. add, sub).

        Args:
            other: The other Manager for the operation.
            how_to_join: The type of join to join to make (e.g. right, outer).

        Returns:
            New DataManager with new data and index.

def _inter_manager_operations(self, other, how_to_join, func):
        """Inter-data operations (e.g. add, sub).

        Args:
            other: The other Manager for the operation.
            how_to_join: The type of join to join to make (e.g. right, outer).

        Returns:
            New DataManager with new data and index.
        """
        reindexed_self, reindexed_other_list, joined_index = self.copartition(
            0, other, how_to_join, False
        )
        # unwrap list returned by `copartition`.
        reindexed_other = reindexed_other_list[0]
        new_columns = self._join_index_objects(
            0, other.columns, how_to_join, sort=False
        )
        # THere is an interesting serialization anomaly that happens if we do
        # not use the columns in `inter_data_op_builder` from here (e.g. if we
        # pass them in). Passing them in can cause problems, so we will just
        # use them from here.
        self_cols = self.columns
        other_cols = other.columns

        def inter_data_op_builder(left, right, func):
            left.columns = self_cols
            right.columns = other_cols
            # We reset here to make sure that the internal indexes match. We aligned
            # them in the previous step, so this step is to prevent mismatches.
            left.index = pandas.RangeIndex(len(left.index))
            right.index = pandas.RangeIndex(len(right.index))
            result = func(left, right)
            result.columns = pandas.RangeIndex(len(result.columns))
            return result

        new_data = reindexed_self.inter_data_operation(
            1, lambda l, r: inter_data_op_builder(l, r, func), reindexed_other
        )
        return self.__constructor__(new_data, joined_index, new_columns)