É isso que vamos resolver: vamos carregar o modelo antes de as requisições serem tratadas, mas apenas um pouco antes de a aplicação começar a receber requisições, não enquanto o código estiver sendo carregado.

## Lifespan { #lifespan }

/// note | Detalhes Técnicos

ASGI é um novo "padrão" sendo desenvolvido por membros do time central do Django. Ele ainda não é um "padrão Python" (uma PEP), embora eles estejam no processo de fazer isso.

	register := func(manager *Manager) {
		errFatal(manager.RegisterStreamingHandler(handlerTest, StreamHandler{
			Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {
				// Send many responses.
				// Test that this doesn't block.
				for i := range byte(100) {
					select {
					case resp <- []byte{i}:
					// ok
					case <-ctx.Done():
						return NewRemoteErr(ctx.Err())
					}

        // Register a witness first
        String regId = mockService.registerWitness("TestResource", "192.168.1.100", 1);

        // Send notification affecting the registration
        mockService.sendNotification(WitnessEventType.CLIENT_MOVE, "TestResource");

        // Clean up
        mockService.unregisterWitness(regId);
    }

    @Test

**FastAPI** stellt den gleichen `WebSocket` direkt zur Verfügung, als Annehmlichkeit für Sie, den Entwickler. Er kommt aber direkt von Starlette.

///

## Nachrichten erwarten und Nachrichten senden { #await-for-messages-and-send-messages }

In Ihrer WebSocket-Route können Sie Nachrichten `await`en und Nachrichten senden.

{* ../../docs_src/websockets/tutorial001_py39.py hl[48:52] *}

Sie können Binär-, Text- und JSON-Daten empfangen und senden.

				// - practically speaking this never happens
				// and should never happen - however it has
				// been seen recently due to hardware issues
				// causes Reads() to go slower than Writes().
				//
				// Send such results anyways as this shall
				// expose a problem underneath.
				if totalPut > throughputHighestPut {
					throughputHighestResults = results
					throughputHighestPut = totalPut

            while (attempt < MAX_REDIRECTS) {
                this.connection.setRequestProperty(this.authProperty, this.authMethod + ' ' + Base64.toBase64String(type1.toByteArray()));
                this.connection.connect(); // send type 1
                response = parseResponseCode();
                if (response != HTTP_UNAUTHORIZED && response != HTTP_PROXY_AUTH) {
                    return;
                }

|:----------------------------------|:----------------------------------------------------------|
| `minio_audit_failed_messages`     | Total number of messages that failed to send since start. |
| `minio_audit_target_queue_length` | Number of unsent messages in queue for target.            |
| `minio_audit_total_messages`      | Total number of messages sent since start.                |

				return err
			}
			return w.mw.Flush()
		}
		return nil
	}
	return &w
}

// write one or more objects to the stream in order.
// It is favorable to send as many objects as possible in a single write,
// but no more than math.MaxUint32
func (w *metacacheWriter) write(objs ...metaCacheEntry) error {
	if w == nil {
		return errors.New("metacacheWriter: nil writer")
	}

E, então, adicionando o argumento de palavra-chave extra `hashed_password=hashed_password`, como em:

```Python
UserInDB(**user_in.dict(), hashed_password=hashed_password)
```

...acaba sendo como:

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],
    full_name = user_dict["full_name"],