assertTrue(transport.isSigningOptional());
        assertTrue(transport.isSigningEnforced());
    }

    @Test
    @DisplayName("unwrap returns this for compatible types and throws otherwise")
    void unwrapBehavior() {
        // Happy paths
        SmbTransport asIface = transport.unwrap(SmbTransport.class);
        assertSame(transport, asIface);

Si declaras un [Response Model](../tutorial/response-model.md) FastAPI lo usará para serializar los datos a JSON, usando Pydantic.

Si no declaras un response model, FastAPI usará el `jsonable_encoder` explicado en [Codificador Compatible con JSON](../tutorial/encoder.md) y lo pondrá en un `JSONResponse`.

///

## Types and validation { #types-and-validation }

These environment variables can only handle text strings, as they are external to Python and have to be compatible with other programs and the rest of the system (and even with different operating systems, as Linux, Windows, macOS).

/*
Package zip provides support for reading and writing ZIP archives.

See the [ZIP specification] for details.

This package does not support disk spanning.

A note about ZIP64:

To be backwards compatible the FileHeader has both 32 and 64 bit Size
fields. The 64 bit fields will always contain the correct value and
for normal archives both fields will be the same. For files requiring

## Compatibilité **FastAPI** { #fastapi-compatibility }

La simplicité du système d’injection de dépendances rend **FastAPI** compatible avec :

* toutes les bases de données relationnelles
* les bases de données NoSQL
* les packages externes
* les API externes
* les systèmes d’authentification et d’autorisation

## Récapitulatif { #recap }

Vous avez maintenant les outils pour implémenter un système de sécurité complet basé sur `username` et `password` pour votre API.

En utilisant ces outils, vous pouvez rendre le système de sécurité compatible avec n'importe quelle base de données et avec n'importe quel modèle d'utilisateur ou de données.

Le seul détail manquant est qu'il n'est pas encore réellement « sécurisé ».

## Recapitulando { #recap }

Agora você tem as ferramentas para implementar um sistema de segurança completo baseado em `username` e `password` para sua API.

Usando essas ferramentas, você pode tornar o sistema de segurança compatível com qualquer banco de dados e com qualquer usuário ou modelo de dados.

O único detalhe que falta é que ainda não é realmente "seguro".

Apply shared dependencies at the router level via `dependencies=[Depends(...)]`.

## Async vs Sync *path operations*

Use `async` *path operations* only when fully certain that the logic called inside is compatible with async and await (it's called with `await`) or that doesn't block.

```python
from fastapi import FastAPI

app = FastAPI()


# Use async def when calling async code
@app.get("/async-items/")

     *
     * <ul>
     *   <li>If {@link #CLASSES} path type is also set, then the dependency should be placed on the
     *       module path, but is also compatible with placement on the class path. Compatibility can
     *       be achieved, for example, by repeating in the {@code META-INF/services/} directory the services

Y también que tu código será muy compatible con muchas otras herramientas y paquetes de Python. 🚀

///

## Anotaciones de tipos en **FastAPI** { #type-hints-in-fastapi }

**FastAPI** aprovecha estas anotaciones de tipos para hacer varias cosas.