How to use the tiny-lr.middleware function in tiny-lr

w.bundle()
    .on('error', function(err) {
      console.error(colors.red('\nError: ') + err.message);
      res.end('console.error("' + err.message + '")');
      this.emit('end');
    })
    .pipe(res);
});

// static files
server.use(serveStatic(directory));
server.use(serveIndex(directory));

// livereload server
if (process.env.NODE_ENV !== 'production') {
  server.use(livereloadServer.middleware({ app: server }));
}

// start the server
server.listen(process.env.PORT || program.port, function () {
  var htmlFile = (projectType === 'module') ? 'test.html' : '';

  console.log(
    colors.grey('%s running at ') + colors.cyan('http://localhost:%s/%s'),
    projectType.charAt(0).toUpperCase() + projectType.slice(1),
    program.port,
    htmlFile
  );

  exec('open "http://localhost:' + program.port + '/' + htmlFile + '"');
});

console.log(`You are in ${process.env.NODE_ENV} mode`)
    console.log(
      'which means every change in your themes (templates, partials and assets), reference and structure folders will dynamically update your site'
    )
    console.log("In production, this mode shouldn't be used.")

    this._watchersStart()

    var lport = process.env.LIVERELOAD_PORT || 35729
    this.lserver = express()

    // Launching a Livereload server
    this.lserver
      .use(bodyParser.json())
      .use(bodyParser.urlencoded({extended: true}))
      .use(tinylr.middleware({app: this.lserver}))
      .listen(lport, function() {
        console.log('Livereload listening on %d', lport)
      })
      .on('error', function(err) {
        if (err.code == 'EADDRINUSE') {
          console.error(
            clc.red("can't start the Abe's watch server\n"),
            `This watch server has tried to listen on the port ${lport} but this server is already in use by another process...`
          )
        } else {
          console.error(err)
        }
      })

    process.on('SIGINT', () => {
      try {

var server = express();
var startFileWatcher = function() {
  var watcher = chokidar.watch(assetPath + '/**/*');
  watcher.on('ready', function(){
    console.log('Livereload enabled. Watching for changes in', assetPath);

    watcher.on('all', function(event, path) {
      tinylr.changed(path)
    });
  });
};

if(livereload) {
  server
    .use(tinylr.middleware({ app: server, dashboard: true }))
    .use(require('connect-livereload')({
      src: '/livereload.js?snipver=1',
      include: [ '/', '.*\.html']
    }));
}

if(cors) {
  server.use(function(req, res, next) {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Headers', req.get('Access-Control-Request-Headers') || '*');
    next();
  });
}

server
  .use(express.static(assetPath, {