return delegate.contentLength();
    }

    @Override
    public void writeTo(BufferedSink sink) throws IOException {
      BufferedSink bufferedSink = Okio.buffer(sink(sink));
      delegate.writeTo(bufferedSink);
      bufferedSink.flush();
    }

    public Sink sink(Sink sink) {
      return new ForwardingSink(sink) {
        private long totalBytesWritten = 0L;
        private boolean completed = false;

          }

          @Override public void writeTo(BufferedSink sink) throws IOException {
            BufferedSink bufferedSink = Okio.buffer(sink(sink));
            delegate.writeTo(bufferedSink);
            bufferedSink.flush();
          }

          public Sink sink(Sink sink) {
            return new ForwardingSink(sink) {
              private long totalBytesWritten = 0L;

          .post(
            object : RequestBody() {
              override fun contentType() = null

              override fun writeTo(sink: BufferedSink) {
                for (i in 0..9) {
                  sink.writeByte(0)
                  sink.flush()
                  sleep(100)
                }
                fail("Expected connection to be closed")
              }
            },

    )
    val asyncRequestBody: RequestBody =
      object : RequestBody() {
        override fun contentType(): MediaType? = null

        override fun writeTo(sink: BufferedSink) {
          sink.writeUtf8("Hello request!")
          sink.close()
        }

        override fun isDuplex(): Boolean = true
      }
    val request =
      request()
        .post(asyncRequestBody)

    @Throws(IOException::class)
    override fun contentLength(): Long = delegate.contentLength()

    @Throws(IOException::class)
    override fun writeTo(sink: BufferedSink) {
      val forwardingSink =
        object : ForwardingSink(sink) {
          private var totalBytesWritten: Long = 0
          private var completed = false

          override fun write(
            source: Buffer,

Você pode:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">Me siga no **GitHub**</a>.
    * Ver também outros projetos Open Source criados por mim que podem te ajudar.
    * Me seguir para saber quando um novo projeto Open Source for criado.

## 🔗 ⏮️ 📕

👆 💪 🔗 ⏮️ <a href="https://tiangolo.com" class="external-link" target="_blank">👤 (🇹🇦 🇩🇬 / `tiangolo`)</a>, 📕.

👆 💪:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">⏩ 👤 🔛 **📂**</a>.
    * 👀 🎏 📂 ℹ 🏗 👤 ✔️ ✍ 👈 💪 ℹ 👆.
    * ⏩ 👤 👀 🕐❔ 👤 ✍ 🆕 📂 ℹ 🏗.

## 開発者とつながる

以下で、<a href="https://tiangolo.com" class="external-link" target="_blank">開発者 (Sebastián Ramírez / `tiangolo`)</a> とコンタクトをとれます:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">**GitHub** でフォロー</a>。
    * 他のオープンソースプロジェクトを確認できます。何かの助けになるものが見つかるかもしれません。
    * 新たなオープンソースプロジェクトを作成したときに通知されます。
* <a href="https://x.com/tiangolo" class="external-link" target="_blank">**X (Twitter)** でフォロー</a>。

## 개발자와의 연결

<a href="https://tiangolo.com" class="external-link" target="_blank">개발자(Sebastián Ramírez / `tiangolo`)</a>와 연락을 취할 수 있습니다.

여러분은 할 수 있습니다:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">**GitHub**에서 팔로우하기.</a>.
    * 당신에게 도움이 될 저의 다른 오픈소스 프로젝트를 확인하십시오.
    * 새로운 오픈소스 프로젝트를 만들었을 때 확인하려면 팔로우 하십시오.

* <a href="https://github.com/tiangolo/full-stack" class="external-link" target="_blank">https://github.com/tiangolo/full-stack</a>
* <a href="https://github.com/tiangolo/full-stack-flask-couchbase" class="external-link" target="_blank">https://github.com/tiangolo/full-stack-flask-couchbase</a>
* <a href="https://github.com/tiangolo/full-stack-flask-couchdb" class="external-link" target="_blank">https://github.com/tiangolo/full-stack-flask-couchdb</a>