/**
 * Deep clone value.
 * @param value Value to clone.
 */
export declare function deepClone<T = any>(value: T): T;
/**
 * Checks if value is null or undefined.
 * @param value Value to check.
 * @returns True if value is null or undefined, false otherwise.
 */
export declare function isNil(value: any): boolean;
/**
 * Checks if value is object like.
 * @param value Value to check.
 * @returns True if value is object like, false otherwise.
 */
export declare function isObjectLike(value: any): value is object;
/**
 * Checks if path is a direct property of object.
 * @param object Object to check.
 * @param path Path to check.
 */
export declare function has<T>(object: T, path: string | string[]): boolean;
/**
 * Retrieves the value at the given path from the object.
 * Returns defaultValue if the path does not exist.
 * @param object Object to get value from.
 * @param path Property path as a dot-separated string or array of keys.
 * @param defaultValue Value to return if the path does not exist.
 * @returns Value at the given path or defaultValue.
 */
export declare function get<T>(object: T, path: string | string[], defaultValue?: any): any;
/**
 * Update object value on path.
 * @param object Object to update.
 * @param path Path to the value.
 * @param value New value to set.
 */
export declare function set(object: any, path: string | string[], value: any): void;