import { UseCase } from '../../../core/domain/useCases/UseCase';
import { IGuestbooksRepository } from '../repositories/IGuestbooksRepository';
import { Guestbook } from '../models/Guestbook';
export declare class GetGuestbook implements UseCase<Guestbook> {
    private readonly guestbooksRepository;
    constructor(guestbooksRepository: IGuestbooksRepository);
    /**
     * Returns a guestbook by id.
     *
     * @param {number} guestbookId - Guestbook identifier.
     * @returns {Promise<Guestbook>}
     */
    execute(guestbookId: number): Promise<Guestbook>;
}