code: def _missing_(cls, value):
          
          if not (isinstance(value, int) and 100 <= value <= 659):
              raise ValueError('%r is not a valid %s' % (value, cls.__name__))
          code = str(value)
          kind = KIND.get(code[0], 'Reserved')
          info = INFO.get(code[1], 'Reserved')
          extend_enum(cls, '%s - %s [%s]' % (kind, info, value), value)
          return cls(value)
docs: Lookup function used when value is not found.