import type { Logger } from '../types/index.js';
import type { MongoStorage } from '../store/index.js';
export declare function startGlobalProfilePictureFetcher(getStorage: () => MongoStorage | null, logger: Logger | null, maxAgeMs?: number, concurrency?: number, batchSize?: number): void;
export declare function startPPsFetcher(storage: MongoStorage | null, logger: Logger | null, maxAgeMs?: number, concurrency?: number, batchSize?: number): Promise<void>;