Class LoadedModule1

packages/router/test/router_preloader.spec.ts:146–151

      class LoadedModule2 {}

      @NgModule({
        imports: [
          RouterModule.forChild([{path: 'LoadedModule1', loadChildren: () => LoadedModule2}]),
        ],
      })
      class LoadedModule1 {}

      router.events.subscribe((e) => {
        if (e instanceof RouteConfigLoadEnd || e instanceof RouteConfigLoadStart) {