source: Buffer,
      byteCount: Long,
    ) {
      val toRead = minOf(remainingByteCount, byteCount)
      if (toRead > 0L) {
        source.read(buffer, toRead)
      }
      val toSkip = byteCount - toRead
      if (toSkip > 0L) {
        source.skip(toSkip)
      }
      remainingByteCount -= toRead
      receivedByteCount += byteCount
    }

    @Throws(IOException::class)

{* ../../docs_src/background_tasks/tutorial002_an_py310.py hl[13,15,22,25] *}

En este ejemplo, los mensajes se escribirán en el archivo `log.txt` *después* de que se envíe el response.

Si hay un query en el request, se escribirá en el log en una tarea en segundo plano.

                    <table>
                        <thead><tr><td>Name</td><td>Extra column</td></tr></thead>
                        <tr><td>propName</td><td>some value</td></tr>
                    </table>
                </section>
                <section><title>Methods</title>
                    <table>
                        <thead><tr><td>Name</td></tr></thead>
                        <tr><td>methodName</td></tr>

     */
    void build(ClassDoc classDoc) {
        Element thead = getChild(classDoc.getPropertiesTable(), "thead");
        Element tr = getChild(thead, "tr");
        List<Element> header = children(tr, "td");
        if (header.size() < 1) {
            throw new RuntimeException(String.format("Expected at least 1 <td> in <thead>/<tr>, found: %s", header));
        }

        def content = parse('''<section>
                <section><title>Properties</title>
                    <table><thead><tr><td/></tr></thead></table>
                </section>
                <section><title>Methods</title>
                    <table><thead><tr><td/></tr></thead></table>
                </section>
            </section>
        ''')

        when:
        ClassDoc doc = withCategories {

        def content = parse('''
<section>
    <section><title>Properties</title>
        <table>
            <thead><tr><td>Name</td></tr></thead>
            <tr><td>b</td></tr>
            <tr><td>a</td></tr>
        </table>
    </section>
    <section><title>Methods</title><table><thead><tr></tr></thead></table></section>
</section>
''')

        when:
        ClassDoc doc = withCategories {

        Document document = parent.getOwnerDocument();

        // <thead>
        //   <tr>
        //     <td>Block</td>
        //     <td>Description</td>
        //   </tr>
        // </thead>
        Element thead = document.createElement("thead");
        parent.appendChild(thead);
        Element tr = document.createElement("tr");
        thead.appendChild(tr);
        Element td = document.createElement("td");

        Document document = parent.getOwnerDocument();

        // <thead>
        //   <tr>
        //     <td>Property</td>
        //     <td>Description</td>
        //   </tr>
        // </thead>
        Element thead = document.createElement("thead");
        parent.appendChild(thead);
        Element tr = document.createElement("tr");
        thead.appendChild(tr);
        Element td = document.createElement("td");

        def content = parse('''
<section>
    <section><title>Methods</title>
        <table>
            <thead><tr><td>Name</td></tr></thead>
            <tr><td>a</td></tr>
            <tr><td>b</td></tr>
        </table>
    </section>
    <section><title>Properties</title><table><thead><tr>Name</tr></thead></table></section>
</section>
''')

        when:
        ClassDoc doc = withCategories {

      return failFastResponse!!
    }

    val result = responseQueue.take()

    // If take() returned because we're shutting down, then enqueue another dead letter so that any
    // other threads waiting on take() will also return.
    if (result == DEAD_LETTER) responseQueue.add(DEAD_LETTER)

    return result
  }