docs: def dynamic(name: str, expression: Union[type, Callable[[Type[Any]], type]]) \
          -> Callable[[Callable[..., Any]], Callable[..., Any]]:  # TODO type annotations for pass-through decorator
      """
      
      :param name: 
      :param expression: a subclass of ``type`` or a callable in the format ``(owner: Type[Any]) -> type``.
      :return: 
      """
  
      def decorator(func):
          if not hasattr(func, '__dynamic__'):
              func.__dynamic__ = {name: expression}
          else:
              func.__dynamic__[name] = expression
          return func
  
      return decorator