docs: function getUserInfo(auth) {
      return new Promise((resolve, reject) => {
          const oauth2 = google.oauth2({
              auth,
              version: 'v2',
          });
  
          oauth2.userinfo.v2.me.get((err, res) => {
              if (err) {
                  reject(err);
              } else {
                  resolve(res.data);
              }
              return;
          });
      });
  }