def getplaylist():
    """
    @api {post} /music/playlist/getplaylist 获取用户歌单
    @apiVersion 1.0.0
    @apiGroup Playlist
    @apiDescription 获取用户歌单

    @apiParam (Headers) {string} token 令牌
    @apiParam (Headers) {String} device_token 设备令牌
    @apiParam (Headers) {String} content_type 内容类型
    @apiParam (Headers) {String} timestamp 时间戳

    @apiSuccess (Success) {Object} playlistid 播放列表编号
    @apiSuccess (Success) {Object} playlistname 播放列表名称
    @apiSuccess (Success) {Object} imageS 小尺寸图片
    @apiSuccess (Success) {Object} imageM 中等尺寸图片
    @apiSuccess (Success) {Object} imageL 大尺寸图片

    @apiSuccessExample {json} Success-Response:
    {
        "data": [
            {
                "playlistid": 1,
                "playlistname": "我的列表",
                "imageS": null,
                "imageM": null,
                "imageL": null
            }
        ]
    }

    """
