import { SetRequestInterface } from './interfaces/set.request.interface';
import { StorageStrategyInterface } from './interfaces/storage.strategy.interface';
export declare class AppService {
    private readonly storageStrategy;
    constructor(storageStrategy: StorageStrategyInterface);
    existsMulti(keys: Array<string>): Promise<boolean[]>;
    getMulti(keys: Array<string>): Promise<string[]>;
    save(request: SetRequestInterface): Promise<void>;
}