| 1234567891011121314 | const Tunnel = require('./lib/Tunnel');module.exports = function localtunnel(arg1, arg2, arg3) {  const options = typeof arg1 === 'object' ? arg1 : { ...arg2, port: arg1 };  const callback = typeof arg1 === 'object' ? arg2 : arg3;  const client = new Tunnel(options);  if (callback) {    client.open(err => (err ? callback(err) : callback(null, client)));    return client;  }  return new Promise((resolve, reject) =>    client.open(err => (err ? reject(err) : resolve(client)))  );};
 |