* @param value4
     *            The fourth value
     * @return A tuple of four values
     */
    public static <T1, T2, T3, T4> Tuple4<T1, T2, T3, T4> tuple4(final T1 value1, final T2 value2, final T3 value3, final T4 value4) {
        return new Tuple4<>(value1, value2, value3, value4);
    }

    /**
     * Constructs an instance.
     */
    public Tuple4() {
    }

    /**
     * Constructs an instance.
     *

     *            The fifth value
     * @return A tuple of five values
     */
    public static <T1, T2, T3, T4, T5> Tuple5<T1, T2, T3, T4, T5> tuple5(final T1 value1, final T2 value2, final T3 value3, final T4 value4,
            final T5 value5) {
        return new Tuple5<>(value1, value2, value3, value4, value5);
    }

    /**
     * Constructs an instance.
     */
    public Tuple5() {
    }

    /**

     * @param value3
     *            The third value
     * @return A tuple of three values
     */
    public static <T1, T2, T3> Tuple3<T1, T2, T3> tuple3(final T1 value1, final T2 value2, final T3 value3) {
        return new Tuple3<>(value1, value2, value3);
    }

    /**
     * Constructs an instance.
     */
    public Tuple3() {
    }

    /**
     * Constructs an instance.
     *

Ve yine, editör bunun bir `str` ​​olduğunu biliyor ve bunun için destek sağlıyor.

#### `Tuple` ve `Set`

`Tuple` ve `set`lerin tiplerini bildirmek için de aynısını yapıyoruz:

{* ../../docs_src/python_types/tutorial007.py hl[1,4] *}


Bu şu anlama geliyor:

* `items_t` değişkeni sırasıyla `int`, `int`, ve `str` tiplerinden oluşan bir `tuple` türündedir .
* `items_s` ise her öğesi `bytes` türünde olan bir `set` örneğidir.

    /**
     * Creates a thumbnail generation task.
     * @param path The path to the source document.
     * @param docMap The document map containing metadata.
     * @return A tuple containing task information.
     */
    Tuple3<String, String, String> createTask(String path, Map<String, Object> docMap);

     */
    protected <T> T processVirtualHost(final Function<String, T> func, final T defaultValue) {
        final Tuple3<String, String, String>[] vHosts = ComponentUtil.getFessConfig().getVirtualHosts();
        return LaRequestUtil.getOptionalRequest().map(req -> {
            for (final Tuple3<String, String, String> host : vHosts) {
                final String headerValue = req.getHeader(host.getValue1());

   * bodies may only be used with HTTP/2. Calls to HTTP/1 servers will fail before the HTTP request
   * is transmitted. If you cannot ensure that your client and server both support HTTP/2, do not
   * use this feature.
   *
   * ### Duplex APIs
   *
   * With regular request bodies it is not legal to write bytes to the sink passed to

 * limitations under the License.
 */
package okhttp3.internal.duplex

import java.util.concurrent.BlockingQueue
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.TimeUnit.SECONDS
import okhttp3.MediaType
import okhttp3.RequestBody
import okio.BufferedSink
import org.junit.jupiter.api.Assertions.assertTrue

/** A duplex request body that keeps the provided sinks so they can be written to later.  */

| ...header_n     | msgp bin array              | Header of last version
| ...metadata_n   | msgp bin array              | Metadata of last version

Each header contains a mspg array (tuple) encoded object:

xlHeaderVersion version == 1:

```
//msgp:tuple xlMetaV2VersionHeader
type xlMetaV2VersionHeader struct {
 VersionID [16]byte  // Version UUID, raw.

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.duplex

import java.io.IOException
import java.util.concurrent.CountDownLatch
import java.util.concurrent.FutureTask
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.TimeUnit