How to use the coveo-search-ui.ComponentOptions.initComponentOptions function in coveo-search-ui

constructor(public element: HTMLElement, public options: IItemGroupingOptions, public bindings: IComponentBindings) {
    super(element, ItemGrouping.ID, bindings);
    this.options = ComponentOptions.initComponentOptions(element, ItemGrouping, options);
    this.bind.onRootElement(QueryEvents.buildingQuery, (args: IBuildingQueryEventArgs) => this.handleBuildingQuery(args));
    this.bind.onRootElement(QueryEvents.doneBuildingQuery, (args: IBuildingQueryEventArgs) => this.handleDoneBuildingQuery(args));
  }