다음의 인자들이 지원됩니다:

* `allow_origins` - 교차-출처 요청을 보낼 수 있는 출처의 리스트입니다. 예) `['https://example.org', 'https://www.example.org']`. 모든 출처를 허용하기 위해 `['*']` 를 사용할 수 있습니다.
* `allow_origin_regex` - 교차-출처 요청을 보낼 수 있는 출처를 정규표현식 문자열로 나타냅니다.  `'https://.*\.example\.org'`.
* `allow_methods` - 교차-출처 요청을 허용하는 HTTP 메소드의 리스트입니다. 기본값은 `['GET']` 입니다. `['*']` 을 사용하여 모든 표준 메소드들을 허용할 수 있습니다.

    * ReDoc.

---

Tornando al precedente esempio, **FastAPI**:

* Validerà che esiste un `item_id` nel percorso delle richieste `GET` e `PUT`.
* Validerà che `item_id` sia di tipo `int` per le richieste `GET` e `PUT`.
    * Se non lo è, il client vedrà un errore chiaro e utile.
* Controllerà se ci sia un parametro opzionale chiamato `q` (per esempio `http://127.0.0.1:8000/items/foo?q=somequery`) per le richieste `GET`.

Puedes definir esos casos usando una lista en la declaración del tipo.

Recibirás todos los valores del header duplicado como una `list` de Python.

Por ejemplo, para declarar un header de `X-Token` que puede aparecer más de una vez, puedes escribir:

{* ../../docs_src/header_params/tutorial003_an_py310.py hl[9] *}

Si te comunicas con esa *path operation* enviando dos headers HTTP como:

        assertEquals("site:example.com", getAsQuery(Collections.singletonMap(k, new String[] { "example.com" })));
        assertEquals("site:test.org", getAsQuery(Collections.singletonMap(k, new String[] { " test.org " })));
        assertEquals("site:example.com site:test.org", getAsQuery(Collections.singletonMap(k, new String[] { "example.com", "test.org" })));
    }

    public void test_conditions_timestamp() {

   * until a nonzero result is found; imposes "dictionary order." If the end of one iterable is
   * reached, but not the other, the shorter iterable is considered to be less than the longer one.
   * For example, a lexicographical natural ordering over integers considers {@code [] < [1] < [1,
   * 1] < [1, 2] < [2]}.
   *
   * <p>Note that {@code Collections.reverseOrder(lexicographical(comparator))} is not equivalent to

</p>

<h3 id="go">Goroutine creation</h3>

<p class="rule">
The <code>go</code> statement that starts a new goroutine
is synchronized before the start of the goroutine's execution.
</p>

<p>
For example, in this program:
</p>

<pre>
var a string

func f() {
	print(a)
}

func hello() {
	a = "hello, world"
	go f()
}
</pre>

<p>

An example configuration for RabbitMQ is shown below:

```sh

```json
{
    "reason": <string>
}
```

The reason message is returned to the client.

## Example Plugin Implementation

import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.Nullable;

/**
 * A {@link ListenableFuture} that supports fluent chains of operations. For example:
 *
 * {@snippet :
 * ListenableFuture<Boolean> adminIsLoggedIn =
 *     FluentFuture.from(usersDatabase.getAdminUser())
 *         .transform(User::getId, directExecutor())

For that, we update the Pydantic model `TokenData` with a new property `scopes`.

By validating the data with Pydantic we can make sure that we have, for example, exactly a `list` of `str` with the scopes and a `str` with the `username`.

Instead of, for example, a `dict`, or something else, as it could break the application at some point later, making it a security risk.