请问公众号h5的人脸核身requestWxFacePictureVerify接口权限怎么申请？

wx.invoke("requestWxFacePictureVerify", { "request_verify_pre_info":{"name": "张三", "id_card_number":"245144***2444"}}, check_alive_type: 1, appid: “wx2444***”}, function (res){});