import { LiveRegionMessage, ILiveRegionService } from './types';
declare class LiveRegionService implements ILiveRegionService {
    isInited: boolean;
    private _politeQueue;
    private _assertiveQueue;
    renderTo(containerId: string, force?: boolean): boolean;
    destroy(): void;
    sayPolitely(message: string, destroyTimeout?: number): LiveRegionMessage | null;
    interrupt(message: string, destroyTimeout?: number): LiveRegionMessage | null;
    private _init;
    private _setContainers;
}
export declare function getLiveRegionInstance(): LiveRegionService;
export {};