code: def reMutualReceptions(self, idA, idB):
          
          mr = self.mutualReceptions(idA, idB)
          filter_ = ['ruler', 'exalt']
          # Each pair of dignities must be 'ruler' or 'exalt'
          return [(a,b) for (a,b) in mr if (a in filter_ and b in filter_)]
docs: Returns ruler and exaltation mutual receptions.