docs: def are_valid_values(values):
      """
      Determines if a list of values are valid DMX values (0-255).
      """
      try:
          int_values = map(int, values)
          for v in int_values:
              if (v >= 0) and (v <= 255):
                  continue
              else:
                  return False
      except Exception as ex:
          # print(ex)
          return False
      return True