class EventMiddleware:
    """
    事件中间件基类
    """

    def __call__(self, event_name: str, args: tuple, kwargs: dict) -> tuple:
        """
        处理事件
        返回处理后的 (args, kwargs)
        """
        return args, kwargs

    def on_error(
        self, error: Exception, event_name: str, args: tuple, kwargs: dict
    ) -> None:
        """
        处理事件错误
        """
        pass