docs: def compute_cardinalities(self):
          """ This will count the number of distinct values for each dimension in
          the dataset and add that count to the model so that it can be used as a
          hint by UI components. """
          for dimension in self.model.dimensions:
              result = self.members(dimension.ref, page_size=0)
              dimension.spec['cardinality'] = result.get('total_member_count')