import { RequestListener, Server as HttpServer } from "http";
import { Router } from "./middleware/router.js";
import { Request, Response, RouterOptions } from "./types.js";
import { ServerOptions } from "https";
import { Duplex } from "stream";
import { Socket } from "net";
export interface AppOptions extends RouterOptions {
    onUpgrade?: (req: Request, socket: Duplex, head: Buffer) => Promise<void> | void;
    serverOptions?: ServerOptions<typeof Request, typeof Response>;
    https?: boolean;
}
export declare class App extends Router {
    readonly listener: RequestListener<typeof Request, typeof Response>;
    readonly httpServer: HttpServer<typeof Request, typeof Response>;
    private shouldCloseConnection;
    connections: {
        [key: string]: Socket;
    };
    constructor(config?: AppOptions);
    listenSync(...args: any[]): HttpServer<typeof Request, typeof Response>;
    listen(...args: any[]): Promise<HttpServer<typeof Request, typeof Response>>;
    close(): Promise<HttpServer<typeof Request, typeof Response>>;
    closeSync(cb: (err: Error | undefined) => void): void;
}
export declare class Server extends App {
}