interface SessionStorage {
    getItem: (key: string) => string;
    setItem: (key: string, value: string) => void;
    removeItem: (key: string) => void;
    clear: () => void;
}
/**
 * This shim allows clients to define a sessionStorage scheme, if they
 * cannot provide window.sessionStorage.
 *
 */
declare const _default: () => SessionStorage;
export default _default;