```Python hl_lines="5  140  169"
{!> ../../docs_src/security/tutorial005.py!}
```

////

/// info | Informações Técnicas

`Security` é na verdade uma subclasse de `Depends`, e ele possui apenas um parâmetro extra que veremos depois.

Porém ao utilizar `Security` no lugar de `Depends`, o **FastAPI** saberá que ele pode declarar escopos de segurança, utilizá-los internamente, e documentar a API com o OpenAPI.

        if (hasSkip) {
          return null; // Can't have more than one ::
        }
        hasSkip = true;
        partsSkipped++; // :: means we skipped an extra part in between the two delimiters.
        if (i == 0) {
          partsSkipped++; // Begins with ::, so we skipped the part preceding the first :
        }
        if (i == ipString.length() - 2) {

  - Promotes the ServiceAccountTokenPodNodeInfo feature to GA, which adds the node name and uid as claims into service account tokens mounted into running pods, and embeds that information as `authentication.kubernetes.io/node-name` and `authentication.kubernetes.io/node-uid` user extra info when the token is used

* Técnicas más avanzadas, pero igual de fáciles, para declarar **modelos de JSON profundamente anidados** (gracias a Pydantic).
* Muchas características extra (gracias a Starlette) como:
    * **WebSockets**
    * **GraphQL**
    * pruebas extremadamente fáciles con HTTPX y `pytest`
    * **CORS**
    * **Cookie Sessions**
    * ...y mucho más.

## Rendimiento

 *
 * <p>In order to allow proper garbage collection of unused locks, the edges of the lock graph are
 * weak references.
 *
 * <p><strong>Performance</strong>
 *
 * <p>The extra bookkeeping done by cycle detecting locks comes at some cost to performance.
 * Benchmarks (as of December 2011) show that:
 *
 * <ul>

 * of the <i>next</i> request. I.e., if an expensive task arrives at an idle RateLimiter, it will be
 * granted immediately, but it is the <i>next</i> request that will experience extra throttling,
 * thus paying for the cost of the expensive task.
 *
 * @author Dimitris Andreou
 * @since 13.0
 */
// TODO(user): switch to nano precision. A natural unit of cost is "bytes", and a micro precision

     * define a separate MultimapLink interface with a separate "header" implementation, which
     * hopefully could avoid implementing Entry or ValueSetLink at all. (But note that that approach
     * requires us to define extra classes -- unfortunate under Android.) *Then* we could consider
     * lying about the fields below on the grounds that we always initialize them just after the

* <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> - für zusätzliche Typen, mit Pydantic zu verwenden.

Wird von Starlette verwendet:

If you can choose a more recent version of Python for your project, you will be able to take advantage of that extra simplicity.

In all the docs there are examples compatible with each version of Python (when there's a difference).

* <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> - Pydantic ile birlikte kullanılabilecek ek tipler için.

Starlette tarafında kullanılan: