import type { WAMessage } from '@whiskeysockets/baileys';
import type { MongoStorage } from '../index.js';
import type { Logger } from '../../../types/index.js';
import type { Db, ObjectId } from './CRUD.js';
import CRUD from './CRUD.js';
type ArchivedMessage = WAMessage & {
    _id: string | ObjectId;
    archivedAt: number;
};
declare class MessageArchive extends CRUD<ArchivedMessage> {
    protected readonly storage: MongoStorage;
    protected readonly logger: Logger | null;
    static collectionName: string;
    constructor(storage: MongoStorage, mongodb: Db, logger: Logger | null);
    private indexes;
    /**
     * Archives messages older than `daysOld` into the archive collection.
     * Deletes them from original `messages` collection afterward.
     */
    archiveOldMessages(daysOld?: number): Promise<number>;
}
export default MessageArchive;