<div class="termy">

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

---> 100%
```

</div>

/// tip | "Astuce"

En ajoutant `standard`, Uvicorn va installer et utiliser quelques dépendances supplémentaires recommandées.

Cela inclut `uvloop`, le remplaçant performant de `asyncio`, qui fournit le gros gain de performance en matière de concurrence.

///

////

//// tab | Hypercorn

* **de la vérification de types**

...et **FastAPI** utilise ces mêmes déclarations pour :

* **Définir les prérequis** : depuis les paramètres de chemins des requêtes, les entêtes, les corps, les dépendances, etc.
* **Convertir des données** : depuis la requête vers les types requis.
* **Valider des données** : venant de chaque requête :
    * Générant automatiquement des **erreurs** renvoyées au client quand la donnée est invalide.

  ImmediateExecutionOperation* CreateOperation() override = 0;

  // Returns whether the runtime is backed by TFRT or the legacy TF Eager
  // Runtime. This is necessary to decouple runtime-dependent
  // code that is layered on top of the runtime.
  virtual bool UsesTFRT() = 0;

  // List attributes of available devices
  virtual void ListDevices(std::vector<DeviceAttributes>* devices) = 0;

	// the regex used to parse out the pod UID and container ID from a
	// cgroup name. It assumes that any ".scope" suffix has been trimmed off
	// beforehand.  CAUTION: we used to verify that the pod and container id were
	// descendants of a kubepods directory, however, as of Kubernetes 1.21, cgroups
	// namespaces are in use and therefore we can no longer discern if that is the
	// case from within SPIRE agent container (since the container itself is

/// tip | "Dica"

Utilize a versão com `Annotated` se possível.

///

```Python hl_lines="3"
{!> ../../docs_src/dependencies/tutorial001.py!}
```

////

### Declarando a dependência, no "dependente"

Da mesma forma que você utiliza `Body`, `Query`, etc. Como parâmetros de sua *função de operação de rota*, utilize `Depends` com um novo parâmetro:

//// tab | Python 3.10+

```Python hl_lines="13  18"

	"reflect"
	"runtime"
	"testing"
	"time"

	"github.com/minio/minio/internal/grid"
	xnet "github.com/minio/pkg/v3/net"
)

// Storage REST server, storageRESTReceiver and StorageRESTClient are
// inter-dependent, below test functions are sufficient to test all of them.
func testStorageAPIDiskInfo(t *testing.T, storage StorageAPI) {
	testCases := []struct {
		expectErr bool
	}{
		{true},
	}

* オプショナルのクエリパラメータ`limit`は`int`で、デフォルトは`100`です。

そして、これらの値を含む`dict`を返します。

### `Depends`のインポート

```Python hl_lines="3"
{!../../docs_src/dependencies/tutorial001.py!}
```

### "dependant"での依存関係の宣言

*path operation関数*のパラメータに`Body`や`Query`などを使用するのと同じように、新しいパラメータに`Depends`を使用することができます:

```Python hl_lines="13  18"
{!../../docs_src/dependencies/tutorial001.py!}
```

import java.nio.ByteBuffer;
import java.nio.ByteOrder;

/**
 * A convenience base class for implementors of {@code Hasher}; handles accumulating data until an
 * entire "chunk" (of implementation-dependent length) is ready to be hashed.
 *
 * @author Kevin Bourrillion
 * @author Dimitris Andreou
 */
// TODO(kevinb): this class still needs some design-and-document-for-inheritance love
@ElementTypesAreNonnullByDefault

   *
   * <p>Note: in principle this should never need to be used, but it might be useful if the
   * semantics of an implementation disagree in unforeseen ways with the semantics expected by a
   * test, or to keep dependent builds clean in spite of an erroneous test.
   */
  @CanIgnoreReturnValue
  public B suppressing(Method... methods) {
    return suppressing(asList(methods));
  }

  @CanIgnoreReturnValue

///

```Python hl_lines="3"
{!> ../../docs_src/dependencies/tutorial001.py!}
```

////

### Deklarieren der Abhängigkeit im <abbr title="Das Abhängige, der Verwender der Abhängigkeit">„Dependant“</abbr>

So wie auch `Body`, `Query`, usw., verwenden Sie `Depends` mit den Parametern Ihrer *Pfadoperation-Funktion*:

//// tab | Python 3.10+

```Python hl_lines="13  18"