code: function BackendStorage (gateway, opts){
      
      // prepare ourself to make debug possible
      this.uid="Dummy@nothing";
      this.gateway =gateway;
      this.debug=opts.debug;
      this.count=0;
      
      this.storesize= 20 +1;  // number of position slot/devices
      this.event = new EventEmitter();
  }
docs: This is our fake device authentication DB table