code: def set_limit(self, param):
          
          # TODO: Is not having leading zeroes / 4 digits an error?
          limit = int(param)
          if -2000 <= limit <= 6000:
              self.device.temperature_limit = limit / 10.0
          return ""
docs: Models "Limit Command" functionality of device.
  
          Sets the target temperate to be reached.
  
          :param param: Target temperature in C, multiplied by 10, as a string. Can be negative.
          :return: Empty string.