/**
 * Caches the result of a function call based on its arguments for a specified time.
 * Arguments are converted to strings for comparison.
 * Use cacheTimeMs = 0 to disable caching.
 * Use cacheTimeMs = Infinity to never expire the cache.
 * @param fn
 * @param args
 * @param cacheTimeMs
 * @param alsoCacheErrors
 */
export declare function cached(fn: () => any, args: any[], cacheTimeMs?: number, alsoCacheErrors?: boolean): any;