import { PersistentStorage } from '../types';
export declare class SessionStorageWrapper implements PersistentStorage<string | null> {
    protected storage: SessionStorageInterface;
    constructor(storage: SessionStorageInterface);
    getItem(key: string): string | null;
    removeItem(key: string): void;
    setItem(key: string, value: string | null): void;
}
interface SessionStorageInterface {
    getItem(key: string): string | null;
    setItem(key: string, value: string): void;
    removeItem(key: string): void;
}
export {};