## Importer Path

Tout d'abord, importez `Path` de `fastapi`, et importez `Annotated` :

{* ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py hl[1,3] *}

/// info

FastAPI a ajouté le support pour `Annotated` (et a commencé à le recommander) dans la version 0.95.0.

Si vous avez une version plus ancienne, vous obtiendrez des erreurs en essayant d'utiliser `Annotated`.

 *     return createExpensiveGraph(key);
 *   }
 * };
 * LoadingCache<Key, Graph> cache = CacheBuilder.newBuilder().build(loader);
 * }
 *
 * <p>Since this example doesn't support reloading or bulk loading, it can also be specified much
 * more simply:
 *
 * {@snippet :
 * CacheLoader<Key, Graph> loader = CacheLoader.from(key -> createExpensiveGraph(key));
 * }
 *
 * @author Charles Fry

                        "Your build is requesting parallel execution, but this project contains the following "
                                + "plugin(s) that have goals not marked as thread-safe to support parallel execution.",
                        "While this /may/ work fine, please look for plugin updates and/or "
                                + "request plugins be made thread-safe.",

		}
	}

	// Test for Anonymous/unsigned http request.
	// Bucket policy related functions doesn't support anonymous requests, setting policies shouldn't make a difference.
	bucketPolicyStr := fmt.Sprintf(bucketPolicyTemplate, bucketName, bucketName)
	// create unsigned HTTP request for PutBucketPolicyHandler.

	nullTime := sql.NullTime{}
	err := nullTime.Scan(v)
	t.Time = nullTime.Time
	return err
}

func (t EmptyTime) Value() (driver.Value, error) {
	return time.Now() /* pass tests, mysql 8 doesn't support 0000-00-00 by default */, nil
}

type NullString struct {
	sql.NullString
}

type Point struct {
	X, Y int
}

func (point Point) GormDataType() string {
	return "geo"
}

      val heldCertificate = heldCertificate
      if (heldCertificate != null && heldCertificate.keyPair.private.format == null) {
        throw KeyStoreException("unable to support unencodable private key")
      }

      val keyManager = newKeyManager(null, heldCertificate, *(intermediates ?: emptyArray()))
      val trustManager = newTrustManager(null, trustedCertificates, immutableInsecureHosts)

   * bodies may only be used with HTTP/2. Calls to HTTP/1 servers will fail before the HTTP request
   * is transmitted. If you cannot ensure that your client and server both support HTTP/2, do not
   * use this feature.
   *
   * ### Duplex APIs
   *
   * With regular request bodies it is not legal to write bytes to the sink passed to

 * Examples of frameworks include:
 *
 * <ul>
 *   <li><a href="https://dagger.dev/producers.html">Dagger Producers</a>
 * </ul>
 *
 * <p>The main purpose of {@link #addListener addListener} is to support this chaining. You will
 * rarely use it directly, in part because it does not provide direct access to the {@code Future}
 * result. (If you want such access, you may prefer {@link Futures#addCallback

    }
  }

  // TODO: test adding element of wrong type

  /**
   * Returns {@link Method} instances for the {@code setCount()} tests that assume multisets support
   * duplicates so that the test of {@code Multisets.forSet()} can suppress them.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static List<Method> getSetCountDuplicateInitializingMethods() {

<img src="/img/tutorial/body/image01.png">

Y también se utilizarán en la documentación API dentro de cada *path operation* que los necesite:

<img src="/img/tutorial/body/image02.png">

## Soporte del editor { #editor-support }

En tu editor, dentro de tu función, obtendrás anotaciones de tipos y autocompletado en todas partes (esto no sucedería si recibieras un `dict` en lugar de un modelo de Pydantic):

<img src="/img/tutorial/body/image03.png">