export default class SessionStorage {
    static setItem(key: string, value: string): void;
    static getItem(key: string): string | null;
    static removeItem(key: string): void;
    static clear(): void;
    /** *
     * 0是未初始化，1是支持sessionStorage，2是不支持
     */
    static isSupport: number;
    static available(): boolean;
}
export declare const SessionType: {
    ReferVehicle: string;
};