Still, in both situations, chances are that **FastAPI** will [still be faster](index.md#performance){.internal-link target=_blank} than (or at least comparable to) your previous framework.

### Dependencies

The same applies for [dependencies](tutorial/dependencies/index.md){.internal-link target=_blank}. If a dependency is a standard `def` function instead of `async def`, it is run in the external threadpool.

/// check | "**FastAPI** 👍 ⚫️"

👑 🕸 💽 🏃 **FastAPI** 🈸.

👆 💪 🌀 ⚫️ ⏮️ 🐁, ✔️ 🔁 👁-🛠️ 💽.

✅ 🌅 ℹ [🛠️](deployment/index.md){.internal-link target=_blank} 📄.

///

## 📇 & 🚅

**`krt`** is a very high level wrapper around Kubernetes informers, building on top of `kclient`.

See the [krt README](../../pkg/kube/krt/README.md) for more information.

*krt is currently experimental; please ask maintainers before utilizing it in new areas.*

## Writing Controllers

The `controllers` package offers a variety of helpers for writing controllers.

**FastAPI**将使用这个临时响应来提取头部（也包括cookies和状态码），并将它们放入包含你返回的值的最终响应中，该响应由任何`response_model`过滤。

你也可以在依赖项中声明`Response`参数，并在其中设置头部（和cookies）。

## 直接返回 `Response`

你也可以在直接返回`Response`时添加头部。

按照[直接返回响应](response-directly.md){.internal-link target=_blank}中所述创建响应，并将头部作为附加参数传递：
```Python hl_lines="10-12"
{!../../docs_src/response_headers/tutorial001.py!}
```


/// note | "技术细节"

## Overview

/// info | "정보"

FastAPI는 0.95.0 버전부터 `Annotated`에 대한 지원을 (그리고 이를 사용하기 권장합니다) 추가했습니다.

옛날 버전을 가지고 있는 경우, `Annotated`를 사용하려 하면 에러를 맞이하게 될 것입니다.

`Annotated`를 사용하기 전에 최소 0.95.1로 [FastAPI 버전 업그레이드](../../deployment/versions.md#fastapi_2){.internal-link target=_blank}를 확실하게 하세요.

///

### `Depends` 불러오기

//// tab | Python 3.10+

```Python hl_lines="3"
{!> ../../docs_src/dependencies/tutorial001_an_py310.py!}
```

```Python hl_lines="21  26"
{!../../docs_src/metadata/tutorial004.py!}
```

/// info  | Informação

Leia mais sobre tags em [Configuração de Operação de Caminho](path-operation-configuration.md#tags){.internal-link target=_blank}.

///

### Cheque os documentos

Agora, se você verificar a documentação, ela exibirá todos os metadados adicionais:

<img src="/img/tutorial/metadata/image02.png">

## Eine `Response` direkt zurückgeben

Sie können auch Header hinzufügen, wenn Sie eine `Response` direkt zurückgeben.

Erstellen Sie eine Response wie in [Eine Response direkt zurückgeben](response-directly.md){.internal-link target=_blank} beschrieben und übergeben Sie die Header als zusätzlichen Parameter:

```Python hl_lines="10-12"
{!../../docs_src/response_headers/tutorial001.py!}
```

/// note | "Technische Details"

## Return a `Response` directly

You can also add headers when you return a `Response` directly.

Create a response as described in [Return a Response Directly](response-directly.md){.internal-link target=_blank} and pass the headers as an additional parameter:

```Python hl_lines="10-12"
{!../../docs_src/response_headers/tutorial001.py!}
```

/// note | "Technical Details"

Shinsuke Sugaya <******@****.***> 1589543813 +0900