Вы можете комбинировать `dataclasses` с другими аннотациями типов множеством способов, чтобы формировать сложные структуры данных.

Смотрите подсказки в коде выше, чтобы увидеть более конкретные детали.

## Узнать больше { #learn-more }

Вы также можете комбинировать `dataclasses` с другими Pydantic-моделями, наследоваться от них, включать их в свои модели и т.д.

---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

"_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"

///

## Add extra information { #add-extra-information }

You can declare extra information in `Field`, `Query`, `Body`, etc. And it will be included in the generated JSON Schema.

You will learn more about adding extra information later in the docs, when learning to declare examples.

/// warning

Extra keys passed to `Field` will also be present in the resulting OpenAPI schema for your application.

///

## Подробнее { #learn-more }

Подробнее о **GraphQL** вы можете узнать в <a href="https://graphql.org/" class="external-link" target="_blank">официальной документации GraphQL</a>.

///

## Aprende Más { #learn-more }

Puedes aprender más sobre **GraphQL** en la <a href="https://graphql.org/" class="external-link" target="_blank">documentación oficial de GraphQL</a>.

You can use them to add a specific set of permissions to a JWT token.

Then you can give this token to a user directly or a third party, to interact with your API with a set of restrictions.

You can learn how to use them and how they are integrated into **FastAPI** later in the **Advanced User Guide**.

## Recap { #recap }

In this guide, you'll learn how to generate a **TypeScript SDK** for your FastAPI backend.

## Open Source SDK Generators { #open-source-sdk-generators }

Sie können `dataclasses` mit anderen Typannotationen auf vielfältige Weise kombinieren, um komplexe Datenstrukturen zu bilden.

Weitere Einzelheiten finden Sie in den Bemerkungen im Quellcode oben.

## Mehr erfahren { #learn-more }

Sie können `dataclasses` auch mit anderen Pydantic-Modellen kombinieren, von ihnen erben, sie in Ihre eigenen Modelle einbinden, usw.

And the sub-application could also have its own mounted sub-applications and everything would work correctly, because FastAPI handles all these `root_path`s automatically.

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Just Modern Python { #just-modern-python }

It's all based on standard **Python type** declarations (thanks to Pydantic). No new syntax to learn. Just standard modern Python.

If you need a 2 minute refresher of how to use Python types (even if you don't use FastAPI), check the short tutorial: [Python Types](python-types.md){.internal-link target=_blank}.