check(state == STATE_CLOSED) { "too early; can't read the trailers yet" }
    return trailers ?: EMPTY_HEADERS
  }

  override fun flushRequest() {
    sink.flush()
  }

  override fun finishRequest() {
    sink.flush()
  }

  /** Returns bytes of a request header for sending on an HTTP transport. */
  fun writeRequest(
    headers: Headers,
    requestLine: String,
  ) {

      sink.timeout().timeout(writeTimeoutMillis.toLong(), TimeUnit.MILLISECONDS)
      tunnelCodec.writeRequest(nextRequest.headers, requestLine)
      tunnelCodec.finishRequest()
      val response =
        tunnelCodec.readResponseHeaders(false)!!
          .request(nextRequest)
          .build()
      tunnelCodec.skipConnectBody(response)

      when (response.code) {

		wasCreated = created
		return updateObject, updateErr
	}
	result, err := finisher.FinishRequest(ctx, func() (runtime.Object, error) {

		result, err := requestFunc()
		// If the object wasn't committed to storage because it's serialized size was too large,

	return minQueue, oldestReqFromMinQueue
}

// finishRequestAndDispatchAsMuchAsPossible is a convenience method
// which calls finishRequest for a given request and then dispatches
// as many requests as possible.  This is all of what needs to be done
// once a request finishes execution or is canceled.  This returns a bool