{* ../../docs_src/path_operation_configuration/tutorial004.py hl[19:27] *}

이는 대화형 문서에서 사용됩니다:

<img src="/img/tutorial/path-operation-configuration/image02.png">

## 응답 기술

`response_description` 매개변수로 응답에 관한 설명을 명시할 수 있습니다:

And you can also declare body parameters as optional, by setting the default to `None`:

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note

Notice that, in this case, the `item` that would be taken from the body is optional. As it has a `None` default value.

///

## Multiple body parameters { #multiple-body-parameters }

Und Sie können auch Body-Parameter als optional kennzeichnen, indem Sie den Defaultwert auf `None` setzen:

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note | Hinweis

Beachten Sie, dass in diesem Fall das `item`, welches vom Body genommen wird, optional ist. Da es `None` als Defaultwert hat.

///

## Mehrere Body-Parameter { #multiple-body-parameters }

 * RangeSet<Integer> rangeSet = TreeRangeSet.create();
 * rangeSet.add(Range.closed(1, 10)); // {[1, 10]}
 * rangeSet.add(Range.closedOpen(11, 15)); // disconnected range; {[1, 10], [11, 15)}
 * rangeSet.add(Range.closedOpen(15, 20)); // connected range; {[1, 10], [11, 20)}
 * rangeSet.add(Range.openClosed(0, 0)); // empty range; {[1, 10], [11, 20)}
 * rangeSet.remove(Range.open(5, 10)); // splits [1, 10]; {[1, 5], [10, 10], [11, 20)}
 * }
 *

Previously OkHttp added a synthetic response header, `OkHttp-Selected-Transport`. It
has been replaced with a new synthetic header, `OkHttp-Selected-Protocol`.

##### Changes

 * New: Support for `HTTP-draft-09/2.0`.
 * New: Support for `spdy/3.1`. Dropped support for `spdy/3`.
 * New: Use ALPN on Android platforms that support it (4.4+)
 * New: CacheControl model and parser.
 * New: Protocol selection in MockWebServer.

E você também pode declarar parâmetros de corpo como opcionais, definindo o valor padrão com `None`:

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note | Nota

Repare que, neste caso, o `item` que seria capturado a partir do corpo é opcional. Visto que ele possui `None` como valor padrão.

///

        });
    }

    @Test
    public void testValidBufferAccess() throws Exception {
        byte[] buffer = new byte[100];
        validator.validateBufferAccess(buffer, 10, 20);
        // Should pass without exception
    }

    @Test
    public void testBufferAccessNullBuffer() throws Exception {
        assertThrows(SmbException.class, () -> {

### Использование `settings` { #use-the-settings }

Затем вы можете использовать новый объект `settings` в вашем приложении:

{* ../../docs_src/settings/tutorial001_py39.py hl[18:20] *}

### Запуск сервера { #run-the-server }

Далее вы можете запустить сервер, передав конфигурации через переменные окружения. Например, можно задать `ADMIN_EMAIL` и `APP_NAME` так:

<div class="termy">

### `settings` verwenden { #use-the-settings }

Dann können Sie das neue `settings`-Objekt in Ihrer Anwendung verwenden:

{* ../../docs_src/settings/tutorial001_py39.py hl[18:20] *}

### Den Server ausführen { #run-the-server }

Als Nächstes würden Sie den Server ausführen und die Konfigurationen als Umgebungsvariablen übergeben. Sie könnten beispielsweise `ADMIN_EMAIL` und `APP_NAME` festlegen mit:

Here's how it could look like:

{* ../../docs_src/dependencies/tutorial013_an_py310.py *}

The exit code, the automatic closing of the `Session` in:

{* ../../docs_src/dependencies/tutorial013_an_py310.py ln[19:21] *}

...would be run after the the response finishes sending the slow data:

{* ../../docs_src/dependencies/tutorial013_an_py310.py ln[30:38] hl[31:33] *}