/// <reference types="node" />
import { NextFunction } from 'connect';
import { IncomingMessage, ServerResponse } from 'http';
export type AsyncHandler<T extends IncomingMessage> = (req: T, res: ServerResponse, next: NextFunction) => Promise<any>;
export declare function asyncMiddleware<T extends IncomingMessage>(fn: AsyncHandler<T>): (req: IncomingMessage, res: ServerResponse, next: NextFunction) => Promise<any>;