import UserEvent from "../../../core/internal/event/UserEvent";
import { UserEventDedupDeterminer } from "./UserEventDedupDeterminer";
import { Clock } from "../../../core/internal/util/TimeUtil";
export declare abstract class CachedUserEventDeterminer<Event extends UserEvent> implements UserEventDedupDeterminer {
    private readonly dedupIntervalMillis;
    private readonly clock;
    private cache;
    private currentUser;
    protected constructor(dedupIntervalMillis: number, clock: Clock);
    isDedupTarget(event: Event): boolean;
    abstract supports(event: UserEvent): event is Event;
    abstract cacheKey(event: Event): string;
}