Mas se você tem um monte de dataclasses por aí, este é um truque legal para usá-las para alimentar uma API web usando FastAPI. 🤓

///

## Dataclasses em `response_model`

Você também pode usar `dataclasses` no parâmetro `response_model`:

{* ../../docs_src/dataclasses/tutorial002.py hl[1,7:13,19] *}

A dataclass será automaticamente convertida para uma dataclass Pydantic.

    val contentType = requestBody.contentType()!!

    assertThat(contentType.mediaType).isEqualTo("text/plain; charset=utf-8")
    assertThat(contentType.parameter("charset")).isEqualTo("utf-8")
  }

    String[] NT_STATUS_MESSAGES = { "The operation completed successfully.", "A device attached to the system is not functioning.",
            "Incorrect function.", "The parameter is incorrect.", "Invalid access to memory location.", "The handle is invalid.",
            "The parameter is incorrect.", "The system cannot find the file specified.", "The system cannot find the file specified.",

# `Response` class

You can declare a parameter in a *path operation function* or dependency to be of type `Response` and then you can set data for the response like headers or cookies.

You can also use it directly to create an instance of it and return it from your *path operations*.

You can import it directly from `fastapi`:

```python
from fastapi import Response
```

 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * Provides annotations for Maven plugin development, including mojo configuration,
 * parameter definitions, and lifecycle bindings. These annotations are used to
 * generate plugin descriptors and configure plugin behavior.
 *
 * @since 4.0.0
 */

# Security Tools

When you need to declare dependencies with OAuth2 scopes you use `Security()`.

But you still need to define what is the dependable, the callable that you pass as a parameter to `Depends()` or `Security()`.

There are multiple tools that you can use to create those dependables, and they get integrated into OpenAPI so they are shown in the automatic docs UI, they can be used by automatically generated clients and SDKs, etc.

## Ejemplo

Aquí tienes un ejemplo de una *path operation* con parámetros usando algunos de los tipos anteriores.

{* ../../docs_src/extra_data_types/tutorial001_an_py310.py hl[1,3,12:16] *}

Nota que los parámetros dentro de la función tienen su tipo de dato natural, y puedes, por ejemplo, realizar manipulaciones de fechas normales, como:

# Configuración de Path Operation

Hay varios parámetros que puedes pasar a tu *path operation decorator* para configurarlo.

/// warning | Advertencia

Ten en cuenta que estos parámetros se pasan directamente al *path operation decorator*, no a tu *path operation function*.

///

## Código de Estado del Response

Puedes definir el `status_code` (HTTP) que se utilizará en el response de tu *path operation*.

lesen, wie Sie größere Anwendungen strukturieren ([Bigger Applications - Multiple Files](../../tutorial/bigger-applications.md){.internal-link target=_blank}), möglicherweise mit mehreren Dateien, lernen Sie, wie Sie einen einzelnen `dependencies`-Parameter für eine Gruppe von *Pfadoperationen* deklarieren....

     * implemented. A <code>scope</code> of <code>null</code> or <code>""</code>
     * signifies no scope.
     *
     * The additional <code>svr</code> parameter specifies the address to
     * query. This might be the address of a specific host, a name server,
     * or a broadcast address.
     *
     * @param host
     *            the name to resolve
     * @param type