text: 'use strict';
  
  var events = require('events');
  var util = require('util');
  
  class UpnpService {
    constructor () {
      console.log('ok');
      events.EventEmitter.call(this);
    }
  }
  
  util.inherits(UpnpService, events.EventEmitter);
  
  const u = new UpnpService();
  if (!u) throw new Error('hello');
  