This is done through standard HTTP/2 pooling.
The pooling is keyed off the `{source identity, destination identity, destination ip}`.

### Headers

Ztunnel uses the following well-known headers in HBONE:

	return resp.Body, nil
}

var updateInProgress atomic.Uint32

// Function to get the reader from an architecture
func downloadBinary(u *url.URL, mode string) (binCompressed []byte, bin []byte, err error) {
	transport := getUpdateTransport(30 * time.Second)
	var reader io.ReadCloser
	if u.Scheme == "https" || u.Scheme == "http" {
		reader, err = getUpdateReaderFromURL(u, transport, mode)
		if err != nil {
			return nil, nil, err

// large to fit in the [Scanner.Buffer]. When a scan stops, the reader may have
// advanced arbitrarily far past the last token. Programs that need more
// control over error handling or large tokens, or must run sequential scans
// on a reader, should use [bufio.Reader] instead.
type Scanner struct {
	r            io.Reader // The reader provided by the client.
	split        SplitFunc // The function to split the tokens.

 */
class Http2Reader(
  /** Creates a frame reader with max header table size of 4096. */
  private val source: BufferedSource,
  private val client: Boolean,
) : Closeable {
  private val continuation: ContinuationSource = ContinuationSource(this.source)
  private val hpackReader: Hpack.Reader =
    Hpack.Reader(
      source = continuation,
      headerTableSizeSetting = 4096,
    )

    )
    assert response.headers["access-control-allow-headers"] == "X-Example"

    # Test standard response
    headers = {"Origin": "https://localhost.tiangolo.com"}
    response = client.get("/", headers=headers)
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Hello World"}
    assert (
        response.headers["access-control-allow-origin"]

		// not a storage error.
		return nil
	}
	readers := make([]*metacacheReader, len(disks))
	defer func() {
		for _, r := range readers {
			r.Close()
		}
	}()
	for i := range disks {
		r, w := io.Pipe()
		// Make sure we close the pipe so blocked writes doesn't stay around.
		defer r.CloseWithError(context.Canceled)

		readers[i] = newMetacacheReader(r)
		d := disks[i]

```

### Add suggest documents from source of index

```java
DocumentReader reader = new ESSourceReader(
    client,
    suggester.settings(),
    "contentIndexName",
    "contentTypeName");
suggester.indexer().indexFromDocument(reader, 2, 100).getResponse();
```

### Add suggest document from queryLog

```java
QueryLog queryLog = new QueryLog("field1:value1", null);

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with Reader and Writers for the Xpp3 XML parser, <<<ToAPiV3()>>> and <<<ToApiV4()>>> transformers, and <<<v4>>> package
     for Merger and v4 Reader and Writers for the Xpp3 XML parser,

   * A {{{./maven.html}Descriptor Reference}}

      }.toString()
    }

    private fun logHeader(
      headers: Headers,
      i: Int,
    ) {
      val value = if (headers.name(i) in headersToRedact) "██" else headers.value(i)
      logger.log(headers.name(i) + ": " + value)
    }

    private fun bodyHasUnknownEncoding(headers: Headers): Boolean {
      val contentEncoding = headers["Content-Encoding"] ?: return false

 * limitations under the License.
 */

package com.google.common.io;

import static java.nio.charset.StandardCharsets.UTF_8;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;

/**
 * A char source for testing that has configurable options.
 *
 * @author Colin Decker
 */
public class TestCharSource extends CharSource implements TestStreamSupplier {