export declare const prepareCloneHandlers: () => void;
/**
 * Deep clones Objects, Arrays, Maps and Sets with circular reference protection
 * @param original - The value to clone
 * @param seen - WeakMap to track circular references (internal use)
 * @returns {any} Cloned value
 * @example
 * const obj = { a: 1, b: { c: 2 } };
 * obj.circular = obj; // Create circular reference
 * const cloned = clone(obj); // Works without stack overflow
 */
export declare const clone: <T>(original: T, seen?: WeakMap<WeakKey, any>) => T;