docs: def calculated_intervals(self, intervals):
          """
          Updates the calculated intervals in the database. Performs an upsert
  
          :param intervals: The calculated intervals
          :return: None
          """
          if len(intervals) > 1:
              raise ValueError("Only single calculated interval valid for AssetStream")
          super(AssetStream, self.__class__).calculated_intervals.fset(self, intervals)