import { Storage } from '@varasto/storage';
/**
 * Constructs storage that acts as an cache for another storage.
 *
 * @param storage Storage to create cache for.
 * @param ttl Lifespan in milliseconds for cached entries. If omitted, entries
 *            will be cached indefinitely.
 */
export declare const createCacheStorage: (storage: Storage, ttl?: number) => Storage;