How to use the frida-fs.statSync function in frida-fs

const timestamp = date => Math.floor(date.getTime() / 1000)
    const lookup = {}
    for (let mod of decrypted)
      lookup[mod.relative] = mod

    let nextObj = null
    while (nextObj = enumerator.nextObject()) {
      const relative = nextObj.toString()
      if (/(\_CodeSignature\/CodeResources|SC_Info\/\w+\.s(inf|upf|upp|upx))$/.test(relative))
        continue

      if (!opt.keepWatch && /^Watch\//.test(relative))
        continue

      const absolute = path.join(root, relative)
      const st = fs.statSync(absolute)
      if (st.mode & fs.constants.S_IFDIR) {
        // doesn't need to handle?
        continue
      } else if (!(st.mode & fs.constants.S_IFREG)) {
        console.error('unknown file mode', absolute)
      }

      if (opt.verbose)
        console.log('compress:', relative)

      const entry = libarchive.entryNew()
      libarchive.entrySetPathname(entry, Memory.allocUtf8String(path.join(prefix, relative)))
      libarchive.entrySetSize(entry, st.size)
      libarchive.entrySetFiletype(entry, fs.constants.S_IFREG)
      libarchive.entrySetPerm(entry, st.mode & 0o777)
      libarchive.entrySetCtime(entry, timestamp(st.ctime), 0)

async function transfer(filename) {
  const session = Math.random().toString(36).substr(2)
  const highWaterMark = 4 * 1024 * 1024
  const subject = 'download'
  const { size } = fs.statSync(filename)
  const stream = fs.createReadStream(filename, { highWaterMark })

  console.log('start transfering')
  send({
    subject,
    event: 'start',
    session,
    size,
  })

  const format = size => `${(size / 1024 / 1024).toFixed(2)}MiB`

  let sent = 0
  await new Promise((resolve, reject) =>
    stream
      .on('data', chunk => {