text: function s4() {
      return Math.floor((1 + Math.random()) * 0x10000)
          .toString(16)
          .substring(1);
  }
  
  module.exports = {
      uuid: function(name) {
          return '/r/' + name + '_' + s4() + s4() + '_' + s4() + '_' + s4() + '_' + s4() + '_' + s4() + s4() + s4() + '/';
      }
  }
  