code: def unit_code_msg(housecode, unitcode):
          
          house_byte = 0
          unit_byte = 0
          if isinstance(housecode, str):
              house_byte = insteonplm.utils.housecode_to_byte(housecode) << 4
              unit_byte = insteonplm.utils.unitcode_to_byte(unitcode)
          elif isinstance(housecode, int) and housecode < 16:
              house_byte = housecode << 4
              unit_byte = unitcode
          else:
              house_byte = housecode
              unit_byte = unitcode
          return X10Received(house_byte + unit_byte, 0x00)
docs: Create an X10 message to send the house code and unit code.