code: def tas53(msg):
      
      d = hex2bin(data(msg))
  
      if d[33] == '0':
          return None
  
      tas = bin2int(d[34:46]) * 0.5   # kts
      return round(tas, 1)
docs: Aircraft true airspeed, BDS 5,3 message
  
      Args:
          msg (String): 28 bytes hexadecimal message
  
      Returns:
          float: true airspeed in knots