.then((appRef: ComponentRef) => {
   let html = appRefSyncRender(appRef);
   appRef.dispose();
   return html;
 });

 export function deleteSet(element: ComponentRef, $array, $instance){
     $array = _.reject($array, function (x) { return x.id == $instance.id});
     element.dispose();
     return $array;
 }

export function applicationToString(appRef: ComponentRef): string {
  let html = appRefSyncRender(appRef);
  appRef.dispose();
  return html;
}

 containerRef.instance.init(opts).subscribe(() => {
     containerRef.dispose();
 });

 private destroy() {
     this._backdropRef.destroy();
     this.contentRef.destroy();
 }

 instance.finally.subscribe((user) => {
     chidRef.destroy();
     this.user = user;
     console.log('done');
 })

 result.onDestroy(() => {
     overlayRef.destroy();
 });

 private dispose() {
     this._bootstrapRef.dispose();
     this._backdropRef.dispose();
     this.contentRef.dispose();
 }

 Dismiss(){
     this.componentRef.dispose();
 }