For example, let's add <a href="https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo" class="external-link" target="_blank">ReDoc's OpenAPI extension to include a custom logo</a>.

### Normal **FastAPI**

First, write all your **FastAPI** application as normally:

{* ../../docs_src/extending_openapi/tutorial001.py hl[1,4,7:9] *}

                return
            }
            const li = document.createElement('li')
            li.innerHTML = `<a href="${v.html_url}" target="_blank">★ ${v.stargazers_count} - ${v.full_name}</a> by <a href="${v.owner.html_url}" target="_blank">@${v.owner.login}</a>`
            ul.append(li)
        })
    }

    setupTermynal();
    showRandomAnnouncement('announce-left', 5000)

Fügen wir beispielsweise <a href="https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo" class="external-link" target="_blank">ReDocs OpenAPI-Erweiterung</a> zum Einbinden eines benutzerdefinierten Logos hinzu.

### Normales **FastAPI**

Schreiben Sie zunächst wie gewohnt Ihre ganze **FastAPI**-Anwendung:

```Python hl_lines="1  4  7-9"

/// tip

If you want to **learn FastAPI** in a structured way (recommended), go and read the [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} chapter by chapter instead.

/// info

Щоб дізнатись більше про <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic, перегляньте його документацію</a>.

///

**FastAPI** повністю базується на Pydantic.

Ви побачите набагато більше цього всього на практиці в [Tutorial - User Guide](tutorial/index.md){.internal-link target=_blank}.

## Анотації типів у **FastAPI**

{!../../docs_src/python_types/tutorial010.py!}
```

/// info

想进一步了解 <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic，请阅读其文档</a>.

///

整个 **FastAPI** 建立在 Pydantic 的基础之上。

实际上你将在 [教程 - 用户指南](tutorial/index.md){.internal-link target=_blank} 看到很多这种情况。

## **FastAPI** 中的类型提示

**FastAPI** 利用这些类型提示来做下面几件事。

使用 **FastAPI** 时用类型提示声明参数可以获得：

* **编辑器支持**。

전 과정이었던 [배포 개념들](concepts.md){.internal-link target=_blank}에서 본 것처럼 여러가지 방법이 존재합니다.

지금부터 <a href="https://gunicorn.org/" class="external-link" target="_blank">**구니콘**</a>을 **유비콘 워커 프로세스**와 함께 사용하는 방법을 알려드리겠습니다.

/// info | "정보"

만약 도커와 쿠버네티스 같은 컨테이너를 사용하고 있다면 다음 챕터 [FastAPI와 컨테이너 - 도커](docker.md){.internal-link target=_blank}에서 더 많은 정보를 얻을 수 있습니다.

/// info

Om meer te leren over <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic, bekijk de documentatie</a>.

///

**FastAPI** is volledig gebaseerd op Pydantic.

Je zult veel meer van dit alles in de praktijk zien in de [Tutorial - Gebruikershandleiding](tutorial/index.md){.internal-link target=_blank}.

/// tip

But in real cases, when implementing security, you would get more benefits from using the integrated [Security utilities (the next chapter)](../security/index.md){.internal-link target=_blank}.

///

## Dependencies errors and return values

You can use the same dependency *functions* you use normally.

### Dependency requirements

    * Você também pode adicionar [dependências de `Segurança` com `scopes`](../advanced/security/oauth2-scopes.md){.internal-link target=_blank}.

/// tip | "Dica"