type MessageData = {
    type: 'text';
    data: {
        text: string;
    };
} | {
    type: 'image';
    data: {
        summary: string,
        file: string, // "BE3D084BA0206331A495D9A497C6BF5E.png",
        sub_type: 0,
        url: string, // "https://multimedia.nt.qq.com.cn/download?...",
        file_size: string // "12960"
    }
}

type Sender = {
    user_id: number;
    nickname: string;
    card: string;
};

type MessagePayload = {
    self_id: number;
    user_id: number;
    time: number;
    message_id: number;
    message_seq: number;
    real_id: number;
    real_seq: string;
    message_type: "private" | "group" | string;
    sender: Sender;
    raw_message: string;
    font: number;
    sub_type: string;
    message: MessageData[];
    message_format: string;
    post_type: string;
    target_id: number;
};