/**
 * A local cache util
 * support loader so if a cache expires, will still return cached value until loader update the cache.
 */
export declare class LocalCache {
    private cacheMap;
    private timeoutMap;
    put(key: string, value: any, expires?: number, loader?: () => any): void;
    remove(key: string): void;
    get(key: string): any;
}