import * as firebase from 'firebase';
import { Observable } from 'rxjs';
import { AlreadyReadMessage } from '../domain/account/alreadyReadMessage';
import { Id } from '../firebase/type';
export declare type AlreadyReadMessageDoc = Omit<AlreadyReadMessage, 'updatedAt'> & {
    updatedAt: firebase.firestore.Timestamp;
};
export declare function alreadyReadMessageMapper(alreadyReadMessageDoc: AlreadyReadMessageDoc): AlreadyReadMessage;
declare type AlreadyReadMessageData = AlreadyReadMessage[];
export declare class AlreadyReadMessageObserver {
    private readonly _alreadyReadMessage$;
    private readonly _close$;
    private accountId;
    get alreadyReadMessages$(): Observable<AlreadyReadMessageData>;
    fetchAlreadyReadMessages(roomId: Id, limit?: number, startAfter?: Date): void;
    dispose(): void;
}
export {};