XMLを文字列にし、`Response` に含め、それを返します。

```Python hl_lines="1  18"
{!../../docs_src/response_directly/tutorial002.py!}
```

## 備考

`Response` を直接返す場合、バリデーションや、変換 (シリアライズ) や、自動ドキュメントは行われません。

しかし、[Additional Responses in OpenAPI](additional-responses.md){.internal-link target=_blank}に記載されたようにドキュメントを書くこともできます。

Por padrão, teremos o **recarregamento automático** ativo, então o programa irá recarregar o servidor automaticamente toda vez que você fizer mudanças no seu código. Isso usa muitos recursos e pode ser menos estável. Você deve apenas usá-lo em modo de desenvolvimento.

O servidor de desenvolvimento escutará no endereço de IP `127.0.0.1` por padrão, este é o IP que sua máquina usa para se comunicar com ela mesma (`localhost`).

## `fastapi run`

    if (!string.regionMatches(pos, PREFIX_STRING, 0, 4, ignoreCase = true)) {
      result.writeUtf8(string, pos, limit)
      return true
    }

    var pos = pos + 4 // 'xn--'.size.

    // We'd prefer to operate directly on `result` but it doesn't offer insertCodePoint(), only
    // appendCodePoint(). The Punycode algorithm processes code points in increasing code-point
    // order, not in increasing index order.

```Python hl_lines="9  15-16  19-20  23-24"
{!> ../../docs_src/extra_models/tutorial002.py!}
```

////

## `Union` 或者 `anyOf`

响应可以声明为两种类型的 `Union` 类型，即该响应可以是两种类型中的任意类型。

在 OpenAPI 中可以使用 `anyOf` 定义。

为此，请使用 Python 标准类型提示 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>：

/// note | "笔记"

* **Валидации данных**: исходя из каждого запроса:
    * Генерации **автоматических ошибок**, возвращаемых клиенту, когда данные не являются корректными.
* **Документирования** API с использованием OpenAPI:
    * который затем используется пользовательскими интерфейсами автоматической интерактивной документации.

```Python hl_lines="4  10"
{!> ../../docs_src/body_nested_models/tutorial005.py!}
```

////

Es wird getestet, ob der String eine gültige URL ist, und als solche wird er in JSON Schema / OpenAPI dokumentiert.

## Attribute mit Listen von Kindmodellen

Sie können Pydantic-Modelle auch als Typen innerhalb von `list`, `set`, usw. verwenden:

//// tab | Python 3.10+

```Python hl_lines="18"

     * @since 4.0.0
     */
    Path getPomPath();

    /**
     * Sets the POM file of the project to build. Note that providing the path to a POM file via this method will make
     * the model builder operate in project mode. This mode is meant for effective models that are employed during the
     * build process of a local project. Hence the effective model will support the notion of a project directory. To

 *       typically implemented by opening a writer using one of the methods in the first category,
 *       doing something and finally closing the writer that was opened.
 * </ul>
 *
 * <p>Any {@link ByteSink} may be viewed as a {@code CharSink} with a specific {@linkplain Charset
 * character encoding} using {@link ByteSink#asCharSink(Charset)}. Characters written to the

* **Ajohunše/Ìtọ́kasí**: Ó da lori (àti ibamu ni kikun pẹ̀lú) àwọn ìmọ ajohunše/ìtọ́kasí fún àwọn API: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (èyí tí a mọ tẹlẹ si Swagger) àti <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.

* **Robust**: Code gereed voor productie. Met automatische interactieve documentatie.
* **Standards-based**: Gebaseerd op (en volledig verenigbaar met) open standaarden voor API's: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (voorheen bekend als Swagger) en <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.