export declare class TimeWindowTracker {
    #private;
    constructor();
    static get instance(): TimeWindowTracker;
    clear(): void;
    hasReachedLimit(placement: Amity.AdPlacement): boolean;
    markSeen(placement: Amity.AdPlacement): void;
    private getTimeWindowSettings;
    private getCurrentWindowKey;
}
//# sourceMappingURL=TimeWindowTracker.d.ts.map