<p>
            We check the binary compatibility by comparing the current code’s binary interfaces
            against THE LATEST VERSION WHICH IS RELEASED FROM RELEASE BRANCH (from `released-version.json` on this branch)
            AND LOWER THAN CURRENT BASE VERSION (from `version.txt` on this branch).

    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...and many more.
* Automatic interactive API documentation, including 2 alternative user interfaces:
    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.

    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...and many more.
* Automatic interactive API documentation, including 2 alternative user interfaces:
    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.

        Doc(
            """
            OpenAPI-specific examples.

            It will be added to the generated OpenAPI (e.g. visible at `/docs`).

            Swagger UI (that provides the `/docs` interface) has better support for the
            OpenAPI-specific examples than the JSON Schema `examples`, that's the main
            use case for this.

            Read more about it in the

/// tip

{* ../../docs_src/dataclasses_/tutorial002_py310.py hl[1,6:12,18] *}

The dataclass will be automatically converted to a Pydantic dataclass.

This way, its schema will show up in the API docs user interface:

<img src="/img/tutorial/dataclasses/image01.png">

## Dataclasses in Nested Data Structures { #dataclasses-in-nested-data-structures }

/// tip | Dica

{* ../../docs_src/dataclasses_/tutorial002_py310.py hl[1,6:12,18] *}

A dataclass será automaticamente convertida para uma dataclass Pydantic.

Dessa forma, seu esquema aparecerá na interface de documentação da API:

<img src="/img/tutorial/dataclasses/image01.png">

## Dataclasses em Estruturas de Dados Aninhadas { #dataclasses-in-nested-data-structures }

* «the background task»: «der Hintergrundtask»
* «the button»: «der Button»
* «the cloud provider»: «der Cloudanbieter»
* «the CLI»: «Das CLI»
* «the coverage»: «Die Testabdeckung»
* «the command line interface»: «Das Kommandozeileninterface»
* «the default value»: «der Defaultwert»
* «the default value»: NOT «der Standardwert»
* «the default declaration»: «die Default-Deklaration»
* «the deployment»: «das Deployment»

        <abbr title="Enumeration">Enum</abbr>
        <abbr title="Asynchronous Server Gateway Interface">ASGI</abbr>
        »»»

    Result (German):

        «««
        <abbr title="JSON Web Tokens">JWT</abbr>
        <abbr title="Enumeration">Enum</abbr>
        <abbr title="Asynchrones Server-Gateway-Interface">ASGI</abbr>
        »»»