/*!
 * @package @coolgk/utils
 * @version 3.1.4
 * @link https://github.com/coolgk/node-utils
 * @license MIT
 * @author Daniel Gong <daniel.k.gong@gmail.com>
 *
 * Copyright (c) 2017 Daniel Gong <daniel.k.gong@gmail.com>. All rights reserved.
 * Licensed under the MIT License.
 */

/*!
 *  Copyright (c) 2017 Daniel Gong <daniel.k.gong@gmail.com>. All rights reserved.
 *  Licensed under the MIT License.
 */
export declare function queue(callback: (data?: any) => any, limit?: number): Promise<any>;
export default queue;