code: def items(self):
          
          items = []
          for series in self._get_series():
              series_key = (series.get('measurement',
                                       series.get('name', 'results')),
                            series.get('tags', None))
              items.append(
                  (series_key, self._get_points_for_series(series))
              )
          return items
docs: Return the set of items from the ResultSet.
  
          :return: List of tuples, (key, generator)