code: function WebServer(options) {
    EventEmitter.call(this);
  
    this._options = options;
  
    this._username = options['username'];
    this._ip = options['ip'];
    this._port = options['port'];
    this._secret = options['secret'];
    this._triggerString = options['trigger_string'];
  
    this._server = null;
  }
docs: Web server which listens for webhook events and emits the following events:
  
  - trigger_comment - emitted when an event with trigger string is found
  - pull_request - emitted when a pull request has been opened or updated