def create():
    """
    @api {post} /music/playlist/create 创建用户歌单
    @apiVersion 1.0.0
    @apiGroup Playlist
    @apiDescription 创建用户歌单

    @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

    @apiParam (Body) {String} playlistname 播放列表名称

    @apiSuccess (Success) {Object} playlistid 播放列表编号

    @apiSuccessExample {json} Success-Response:
    {
        "data": {
            "playlistid": 230
        }
    }

    @apiError (Error) 31012 No playlist id in the request params!

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

    """
