/// <reference types="node" />
import { ErrorRequestHandler, Request, RequestHandler, Response } from 'express';
import { OutgoingHttpHeaders } from 'http';
import { Cosmas } from './index';
declare const errorSymbol: unique symbol;
type AckeeRequest = Request & {
    _startAt?: [number, number];
    ackId?: string;
};
type AckeeResponse = Response & {
    _startAt?: [number, number];
    time?: string;
    out?: object;
    [errorSymbol]?: any;
    headers?: OutgoingHttpHeaders;
};
export type CosmasExpressMiddleware = (this: Cosmas, req: AckeeRequest, response: AckeeResponse, next: any) => void;
declare const expressMiddleware: RequestHandler;
declare const expressErrorMiddleware: ErrorRequestHandler;
export { expressErrorMiddleware, expressMiddleware };