/**
 * TODO: Wait until the new ElementRef stuff lands in Angular2
export class RenderedElement {
  constructor(element) {
    this.element = element;
}
  _notImplemented(fnName) {
    console.error("RenderedElement." + fnName + "addClass is not implemented. Use a concrete class like DomRenderedElement instead.");
  }
  addClass(...classNames)       { this._notImplemented('addClass'); }
  removeClass(className)    { this._notImplemented('removeClass'); }
  removeClasses(...classNames)  { this._notImplemented('removeClasses'); }
}

 */