que les données sont valides, compte tenu de certains paramètres. Par exemple, qu'un champ est un `int`, et non un
string.
Ceci est particulièrement utile pour les données entrantes.

Sans un système de validation des données, vous devriez effectuer toutes les vérifications à la main, dans le code.

    if not file:
        return {"message": "No file sent"}
    else:
        return {"file_size": len(file)}


@app.post("/uploadfile/")
async def create_upload_file(file: Union[UploadFile, None] = None):
    if not file:
        return {"message": "No upload file sent"}
    else:

async def create_file(file: Annotated[bytes | None, File()] = None):
    if not file:
        return {"message": "No file sent"}
    else:
        return {"file_size": len(file)}


@app.post("/uploadfile/")
async def create_upload_file(file: UploadFile | None = None):
    if not file:
        return {"message": "No upload file sent"}
    else:

## Principaux Reviewers

Ces utilisateurs sont les **Principaux Reviewers**. 🕵️

### Reviewers des traductions

// Package-wide variables from generator "generated".
option go_package = "k8s.io/api/admissionregistration/v1beta1";

// MatchCondition represents a condition which must be fulfilled for a request to be sent to a webhook.
message MatchCondition {
  // Name is an identifier for this match condition, used for strategic merging of MatchConditions,

| `minio_cluster_notification_events_sent_total`        | `counter` | Total number of events sent to the targets                                               |        |
| `minio_cluster_notification_events_skipped_total`     | `counter` | Events that were skipped to be sent to the targets due to the in-memory queue being full |        |

| `minio_notify_events_errors_total`             | Events that were failed to be sent to the targets (deprecated, please use 'minio_notify_target_failed_events' instead)                      |
| `minio_notify_events_sent_total`               | Total number of events sent to the targets (deprecated, please use 'minio_notify_target_total_events' instead)                              |

OkHttp Server-Sent Events
=========================

Experimental support for server-sent events.
API is not considered stable and may change at any time.

### Download

```kotlin
testImplementation("com.squareup.okhttp3:okhttp-sse:4.12.0")

```Python hl_lines="1  4"
{!../../../docs_src/python_types/tutorial008.py!}
```

Dans cet exemple :

* La variable `prices` est de type `dict` :
    * Les clés de ce dictionnaire sont de type `str`.
    * Les valeurs de ce dictionnaire sont de type `float`.

#### `Optional`

    client.webSocket!!.finishReader()
    assertThat(client.closed).isTrue()
    client.listener.assertFailure(
      ProtocolException::class.java,
      "Server-sent frames must not be masked.",
    )
    server.listener.assertClosing(1000, "Hello")
    server.listener.assertExhausted() // Client should not have sent second close.
  }

  @Test