import { CryptoService } from './crypto.service';
import * as i0 from "@angular/core";
export declare class StorageService {
    private document;
    /**
     * Storage  of storage service
     */
    storage?: Storage;
    /**
     * Crypto service of storage service
     */
    cryptoService: CryptoService;
    constructor(document: Document);
    /**
     * Sets storage service
     * @template T
     * @param {string} key
     * @param {T} value
     */
    set<T>(key: string, value: T): void;
    /**
     * Gets storage service
     * @template T
     * @param {StorageNameType | string} key
     * @returns T | null
     */
    get<T>(key: string): T | null;
    /**
     * Removes storage service
     * @param {string} key
     */
    remove(key: string): void;
    /**
     * Clears storage service
     */
    clear(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<StorageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<StorageService>;
}