code: def _class_dispatch(args, kwargs):
      
      _ = kwargs
      if not args:
          raise ValueError(
              "Multimethods must be passed at least one positional arg.")
  
      if not isinstance(args[0], type):
          raise TypeError(
              "class_multimethod must be called with a type, not instance.")
  
      return args[0]
docs: See 'class_multimethod'.