*    one prefix (`www.publicobject.com`, `api.publicobject.com`). Be careful with this approach as
 *    no pinning will be enforced if additional prefixes are present, or if no prefixes are present.
 *
 * Note that any other form is unsupported. You may not use asterisks in any position other than
 * the leftmost label.
 *
 * If multiple patterns match a hostname, any match is sufficient. For example, suppose pin A

{!> ../../docs_src/response_model/tutorial001_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="17  22  24-27"
{!> ../../docs_src/response_model/tutorial001.py!}
```

////

/// note

注意，`response_model`是「装饰器」方法（`get`，`post` 等）的一个参数。不像之前的所有参数和请求体，它不属于*路径操作函数*。

///

它接收的类型与你将为 Pydantic 模型属性所声明的类型相同，因此它可以是一个 Pydantic 模型，但也可以是一个由 Pydantic 模型组成的 `list`，例如 `List[Item]`。

> NOTE: Server side replication is supported for idempotent versions on directory objects.

### Idempotent versions on delete markers

 *
 * @author James Sexton
 */
@ElementTypesAreNonnullByDefault
final class MapRetrievalCache<K, V> extends MapIteratorCache<K, V> {
  // See the note about volatile in the superclass.
  @CheckForNull private transient volatile CacheEntry<K, V> cacheEntry1;
  @CheckForNull private transient volatile CacheEntry<K, V> cacheEntry2;

  MapRetrievalCache(Map<K, V> backingMap) {

        versions = new LinkedHashMap<>();
        processedVersions = new LinkedHashMap<>();
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");

        /*
         * NOTE: This should be considered a quirk to support interop with Maven's legacy ArtifactDeployer which
         * processes one artifact at a time and hence cannot associate the artifacts from the same project to use the

 *       protected Iterator<String> newTargetIterator() {
 *         return actualElements.iterator();
 *       }
 *     };
 * iteratorTester.test();
 * iteratorTester.testForEachRemaining();
 * }</pre>
 *
 * <p><b>Note</b>: It is necessary to use {@code IteratorTester.KnownOrder} as shown above, rather
 * than {@code KnownOrder} directly, because otherwise the code cannot be compiled.
 *
 * @author Kevin Bourrillion
 * @author Chris Povirk

   * PackageSanityTests. (The test would run on the JVM, too, if not for the suppression below, and
   * that would be a problem because it violates small-test rules. Note that we strip the
   * suppression externally, but it's OK because we don't enforce test-size rules there.)
   *
   * We'd just use PackageSanityTests directly, saving us from needing this separate type, but we're

 */
@Named
@Singleton
@Deprecated
public class DefaultWagonManager extends org.apache.maven.repository.legacy.DefaultWagonManager
        implements WagonManager {

    // NOTE: This must use a different field name than in the super class or IoC has no chance to inject the loggers
    @Inject
    private Logger log;

    @Inject
    private LegacySupport legacySupport;

    @Inject

## Middlewares Integrados

**FastAPI** inclui vários middlewares para casos de uso comuns, veremos a seguir como usá-los.

/// note | Detalhes Técnicos

Para o próximo exemplo, você também poderia usar `from starlette.middleware.something import SomethingMiddleware`.

第一个步骤是安装 FastAPI。

为了使用本教程，你可能需要安装所有的可选依赖及对应功能：

<div class="termy">

```console
$ pip install "fastapi[all]"

---> 100%
```

</div>

......以上安装还包括了 `uvicorn`，你可以将其用作运行代码的服务器。

/// note

你也可以分开来安装。

假如你想将应用程序部署到生产环境，你可能要执行以下操作：

```
pip install fastapi
```

并且安装`uvicorn`来作为服务器：

```
pip install "uvicorn[standard]"
```

然后对你想使用的每个可选依赖项也执行相同的操作。

///