/**
 * Advanced cache decorator using WeakMap for object keys
 * @template T The return type of the cached function
 * @template Args The argument types of the cached function
 * @param fn Function to cache
 * @returns Cached version of the function
 */
export declare function cacheWeak<T, Args extends any[]>(fn: (this: unknown, ...args: Args) => T): (...args: Args) => T;

export { }