import { PLVAuxiliaryMediaPlayerDataMediator } from "../../model/mediator/PLVAuxiliaryMediaPlayerDataMediator";
import { PLVAdvertMediaDataSource } from "../../model/vo/PLVAdvertMediaDataSource";
import { LifecycleAwareDependComponent } from '@polyvharmony/media-player-foundation';
export declare class AuxiliaryCountDownUseCase implements LifecycleAwareDependComponent {
    private readonly mediator;
    private countDownHandler;
    constructor(mediator: PLVAuxiliaryMediaPlayerDataMediator);
    startCountDown(dataSource: PLVAdvertMediaDataSource): void;
    finishCountDown(): void;
    onDestroy(): void;
}