code: def set_attributes(self, priority, address, rtr):
          
          assert isinstance(priority, int)
          assert isinstance(address, int)
          assert isinstance(rtr, bool)
          assert priority == velbus.HIGH_PRIORITY or priority == velbus.LOW_PRIORITY
          assert address >= velbus.LOW_ADDRESS and address <= velbus.HIGH_ADDRESS
          self.priority = priority
          self.address = address
          self.rtr = rtr
docs: :return: None