private fun gzip(bytes: String): Buffer {
    val bytesOut = Buffer()
    val sink = GzipSink(bytesOut).buffer()
    sink.writeUtf8(bytes)
    sink.close()
    return bytesOut
  }

  internal inner class AsyncRequest(
    val path: String,
    val countDownLatch: CountDownLatch,
  ) : Runnable {
    override fun run() {
      try {
        val call =
          client.newCall(