type StorageFallback = Pick; declare module 'local-storage-fallback' { const storage: Storage | StorageFallback; export default storage; export const CookieStorage: { prototype: StorageFallback; new(options?: object): StorageFallback; }; export const MemoryStorage: { prototype: StorageFallback; new(): StorageFallback; }; export function isSupported(name?: string): boolean; }