license import { InjectionToken } from '@angular/core' ; export const LIVE_ANNOUNCER_ELEMENT_TOKEN = new InjectionToken < HTMLElement | null > ( 'liveAnnouncerElement' , { providedIn : 'root' , factory : LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY , } ) ; docs-private export function LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY ( ) { return null ; }