/**
 * Checks if the provided value is empty.
 *
 * A value is considered empty if it is null, undefined, an empty string, or an empty array.
 *
 * @param {unknown} value The value to check.
 * @returns {boolean} True if the value is empty, false otherwise.
 * @example
 * ```typescript
 * console.log(isEmpty(null)); // Output: true
 * console.log(isEmpty(undefined)); // Output: true
 * console.log(isEmpty('')); // Output: true
 * console.log(isEmpty([])); // Output: true
 * console.log(isEmpty('hello')); // Output: false
 * console.log(isEmpty([1, 2, 3])); // Output: false
 * ```
 */
export declare function isEmpty(value: unknown): boolean;