code: def match(self, name, rdclass, rdtype, covers, deleting=None):
          
  
          if not super(RRset, self).match(rdclass, rdtype, covers):
              return False
          if self.name != name or self.deleting != deleting:
              return False
          return True
docs: Returns True if this rrset matches the specified class, type,
          covers, and deletion state.