Lo pones encima de una función. Como un bonito sombrero decorativo (supongo que de ahí viene el término).

Un "decorador" toma la función de abajo y hace algo con ella.

En nuestro caso, este decorador le dice a **FastAPI** que la función de abajo corresponde al **path** `/` con una **operation** `get`.

Es el "**path operation decorator**".

///

También puedes usar las otras operaciones:

{* ../../docs_src/response_model/tutorial003_py310.py hl[24] *}

...hemos declarado el `response_model` para ser nuestro modelo `UserOut`, que no incluye la contraseña:

{* ../../docs_src/response_model/tutorial003_py310.py hl[22] *}

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* Então clique no botão "Execute", a interface do usuário irá se comunicar com a API, enviar os parâmetros, pegar os resultados e mostrá-los na tela:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)

### Evoluindo a Documentação Alternativa da API { #alternative-api-docs-upgrade }

	public final fun maxAgeSeconds ()I
	public final fun maxStaleSeconds ()I
	public final fun minFreshSeconds ()I
	public final fun mustRevalidate ()Z
	public final fun noCache ()Z
	public final fun noStore ()Z
	public final fun noTransform ()Z
	public final fun onlyIfCached ()Z
	public static final fun parse (Lokhttp3/Headers;)Lokhttp3/CacheControl;
	public final fun sMaxAgeSeconds ()I
	public fun toString ()Ljava/lang/String;

	public final fun maxAgeSeconds ()I
	public final fun maxStaleSeconds ()I
	public final fun minFreshSeconds ()I
	public final fun mustRevalidate ()Z
	public final fun noCache ()Z
	public final fun noStore ()Z
	public final fun noTransform ()Z
	public final fun onlyIfCached ()Z
	public static final fun parse (Lokhttp3/Headers;)Lokhttp3/CacheControl;
	public final fun sMaxAgeSeconds ()I
	public fun toString ()Ljava/lang/String;

Entonces, durante ese tiempo, la computadora puede ir y hacer algún otro trabajo, mientras "archivo-lento" 📝 termina.

						<fileEncoding>utf-8</fileEncoding>
					</preremoveScriptlet>
					<postremoveScriptlet>
						<scriptFile>${project.build.directory}/generated-packaging/rpm/scripts/postrm</scriptFile>
						<fileEncoding>utf-8</fileEncoding>
					</postremoveScriptlet>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<repositories>
		<repository>

            return value ? key : "no" + key;
          }
        };
    Map<String, String> transformed = transformEntries(options, flagPrefixer);
    assertEquals("{verbose=verbose, sort=nosort}", transformed.toString());
  }

  // Logically this would accept a NavigableMap, but that won't work under GWT.
  private static <K, V> SortedMap<K, V> sortedNotNavigable(SortedMap<K, V> map) {

* don't sync deployment when pod selector is empty ([#23467](https://github.com/kubernetes/kubernetes/pull/23467), [@mikedanese](https://github.com/mikedanese))
* Support differentiation of OS distro in e2e tests ([#23466](https://github.com/kubernetes/kubernetes/pull/23466), [@andyzheng0831](https://github.com/andyzheng0831))

            return value ? key : "no" + key;
          }
        };
    Map<String, String> transformed = transformEntries(options, flagPrefixer);
    assertEquals("{verbose=verbose, sort=nosort}", transformed.toString());
  }

  // Logically this would accept a NavigableMap, but that won't work under GWT.
  private static <K, V> SortedMap<K, V> sortedNotNavigable(SortedMap<K, V> map) {