@thgh/tunnelmole/dist/src/tunnelmole.d.ts

Tunnelmole, an open source ngrok alternative. Instant public URLs for any http/https based application. Available as a command line application or as an NPM dependency for your code. Stable and maintained. Good test coverage. Works behind firewalls

import { Options } from './options.js';
export default function tunnelmole(options: Options): Promise<{
    url: string;
    on: (type: 'error' | 'close', callback: () => void) => void;
    close: () => void;
}>;