How to use the found/lib/server.getFarceResult function in found

async function renderAsync(req) {
  // for material ui
  global.navigator = global.navigator || {}
  global.navigator.userAgent = req.headers['user-agent'] || 'all'

  const fetcher = new ServerFetcher(
    'http://localhost:3000/graphql',
    { headers: { cookie: req.headers.cookie } },
  )
  const { redirect, status, element } = await getFarceResult({
    url: req.url,
    historyMiddlewares,
    routeConfig: Routes,
    resolver: createResolver(fetcher),
    render,
  })

  const locale = req.cookies && req.cookies.locale
  const elementwithIntl = withIntl(element, locale)
  const sheet = new ServerStyleSheet()
  const app = ReactDOM.renderToString(sheet.collectStyles(elementwithIntl))
  const relayPayload = serialize(fetcher, { isJSON: true })
  const styleTags = sheet.getStyleTags()
  const helmet = Helmet.renderStatic()

  return {

async function serverSideRender(req, res, next) {
    try {
      const { redirect, status, element } = await getFarceResult({
        url: req.url,
        historyMiddlewares: [queryMiddleware],
        routeConfig,
        resolver,
        render,
      })

      if (redirect) {
        res.redirect(302, redirect.url)
        return
      }

      res.status(status).send(`
      
        
          <title>Found Relay example</title>