import type { LiveActivityItem } from "./contracts/shared-types.js";
export declare function isUuid(value: string | null | undefined): boolean;
export declare function isSyntheticIdentifier(value: string | null | undefined): boolean;
type OutboxEventLike = {
    type?: unknown;
    payload?: unknown;
    activityItem?: unknown;
};
export declare function classifyOutboxReplaySkip(event: OutboxEventLike): string | null;
export declare function shouldHideActivityItem(item: LiveActivityItem): boolean;
export {};