/**
 * Compose `middleware` returning
 * a fully valid middleware comprised
 * of all those which are passed.
 *
 * @param {Array} middleware
 * @return {Function}
 * @api public
 */
import { Middleware } from '../type/index';
/**
 * 组合并执行异步队列
 * @category MiddlewareQueue
 */
export declare function compose(middleware: Array<Middleware>): Middleware;