import { CachedUserEventDeterminer } from "./CachedUserEventDeterminer";
import UserEvent, { ExposureEvent } from "../../../core/internal/event/UserEvent";
import { Clock } from "../../../core/internal/util/TimeUtil";
export declare class ExposureEventDedupDeterminer extends CachedUserEventDeterminer<ExposureEvent> {
    constructor(dedupIntervalMillis: number, clock?: Clock);
    supports(event: UserEvent): event is ExposureEvent;
    cacheKey(event: ExposureEvent): string;
}