import type * as http from "node:http";
import type * as stream from "node:stream";
import type * as buffer from "node:buffer";
export type HttpServerOptions = {
    listener: Listener;
    timeout?: number;
    transmuters?: Transmuter[];
};
export type Listener = (request: http.IncomingMessage, response: http.ServerResponse) => (void | Promise<void>);
export declare const asListener: <L extends http.RequestListener>(l: L) => L;
export type Transmuter = (listener: http.RequestListener) => http.RequestListener;
export declare const asTransmuter: <Tm extends Transmuter>(tm: Tm) => Tm;
export type ResponseData = {
    code: number;
    headers: Record<string, string>;
    body: string | ArrayBuffer | null;
};
export type Responder = (request: http.IncomingMessage) => Promise<ResponseData>;
export type Upgrader = (request: http.IncomingMessage, socket: stream.Duplex, head: buffer.Buffer) => void;