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

    @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} itemid 单曲编号
    @apiSuccess (Success) {Object} translatename 翻译名称

    @apiSuccessExample {json} Success-Response:
    {
        "data": [
            {
                "itemid": 9546550,
                "translatename": "Be Your Light (电视剧「隧道」片尾曲)"
            }
        ]
    }

    @apiError (Error) 31006 No playlist id in the request params!

    @apiErrorExample {json} Error-Response:
    {
        "data": "No playlist id in the request params!"
    }

    """
