def _get_points_for_series(self, series):
        """Return generator of dict from columns and values of a series.

        :param series: One series
        :return: Generator of dicts
        """
        for point in series.get('values', []):
            yield self.point_from_cols_vals(
                series['columns'],
                point
            )
Return generator of dict from columns and values of a series.

        :param series: One series
        :return: Generator of dicts