.then((componentRef) => {
                    var domView = resolveInternalDomView(componentRef.hostView.render);
                    // We need to do this here to ensure that we create Testability and
                    // it's ready on the window for users.
                    registry.registerApplication(domView.boundElements[0].element, testability);

                    return componentRef;
                  });

 viewCreated(view: AppView) {
   var viewId = _nextId++;
   MapWrapper.set(_allViewsById, viewId, view);
   MapWrapper.set(_allIdsByView, view, viewId);
   var renderView = resolveInternalDomView(view.render);
   for (var i = 0; i < renderView.boundElements.length; i++) {
     _setElementId(renderView.boundElements[i], [viewId, i]);
   }
 }

 get domElement(): any {
   return resolveInternalDomView(this._parentView.render)
       .boundElements[this._boundElementIndex]
       .element;
 }

export function viewRootNodes(view): List</*node*/ any> {
  return resolveInternalDomView(view.render).rootNodes;
}

 /**
  * Exposes the underlying DOM element.
  * (DEPRECATED way of accessing the DOM, replacement coming)
  */
 // TODO(tbosch): Here we expose the real DOM element.
 // We need a more general way to read/write to the DOM element
 // via a proper abstraction in the render layer
 get domElement() {
   return resolveInternalDomView(this.parentView.render).boundElements[this.boundElementIndex];
 }