docs: def zb_encode(zone, area, user_code):
      """zb: Zone bypass. Zone < 0 unbypass all; Zone > Max bypass all."""
      if zone < 0:
          zone = 0
      elif zone > Max.ZONES.value:
          zone = 999
      else:
          zone += 1
      return MessageEncode('10zb{zone:03d}{area:1d}{code:06d}00'.format(
          zone=zone, area=area+1, code=user_code), 'ZB')