How to use the @openid/appauth/built/node_support/node_request_handler.js.NodeBasedHandler function in @openid/appauth

function initIdp() {
    notifier = new AuthorizationNotifier();
    authorizationHandler = new NodeBasedHandler(getLocalPort(idpConfig.redirectUri));
    tokenHandler = new BaseTokenRequestHandler(requestor);
    // set notifier to deliver responses
    authorizationHandler.setAuthorizationNotifier(notifier);
    // set a listener to listen for authorization responses
    // make refresh and access token requests.
  }