How to use the http-parser-js.HTTPParser.kOnExecute function in http-parser-js

451: 'Unavailable For Legal Reasons',
  500: 'Internal Server Error',
  501: 'Not Implemented',
  502: 'Bad Gateway',
  503: 'Service Unavailable',
  504: 'Gateway Timeout',
  505: 'HTTP Version Not Supported',
  506: 'Variant Also Negotiates',    // RFC 2295
  507: 'Insufficient Storage',       // RFC 4918
  508: 'Loop Detected',
  509: 'Bandwidth Limit Exceeded',
  510: 'Not Extended',               // RFC 2774
  511: 'Network Authentication Required' // RFC 6585
};

const kOnExecute = HTTPParser.kOnExecute | 0;


function ServerResponse(req) {
  OutgoingMessage.call(this);

  if (req.method === 'HEAD') this._hasBody = false;

  this.sendDate = true;

  if (req.httpVersionMajor < 1 || req.httpVersionMinor < 1) {
    this.useChunkedEncodingByDefault = chunkExpression.test(req.headers.te);
    this.shouldKeepAlive = false;
  }
}
util.inherits(ServerResponse, OutgoingMessage);