## `async` oder nicht `async`

Da Abhängigkeiten auch von **FastAPI** aufgerufen werden (so wie Ihre *Pfadoperation-Funktionen*), gelten beim Definieren Ihrer Funktionen die gleichen Regeln.

Sie können `async def` oder einfach `def` verwenden.

	}

	// Attempt all calls.
	_, err = lkClient.RLock(t.Context(), dsync.LockArgs{})
	if err == nil {
		t.Fatal("Expected for Rlock to fail")
	}

	_, err = lkClient.Lock(t.Context(), dsync.LockArgs{})
	if err == nil {
		t.Fatal("Expected for Lock to fail")
	}

	_, err = lkClient.RUnlock(t.Context(), dsync.LockArgs{})
	if err == nil {
		t.Fatal("Expected for RUnlock to fail")
	}

* `close()`: Закрыть файл.

Поскольку все эти методы являются `async` методами, вам следует использовать "await" вместе с ними.

Например, внутри `async` *функции операции пути* можно получить содержимое с помощью:

```Python
contents = await myfile.read()
```

import org.dbflute.mail.send.supplement.async.SMailAsyncStrategy;
import org.dbflute.mail.send.supplement.filter.SMailSubjectFilter;
import org.dbflute.mail.send.supplement.label.SMailLabelStrategy;
import org.dbflute.optional.OptionalThing;
import org.dbflute.util.DfStringUtil;
import org.lastaflute.core.magic.async.AsyncManager;
import org.lastaflute.core.magic.async.ConcurrentAsyncCall;

8. Nota que esta *path operation function* usa `def` regular en lugar de `async def`.

    Como siempre, en FastAPI puedes combinar `def` y `async def` según sea necesario.

    Si necesitas un repaso sobre cuándo usar cuál, revisa la sección _"¿Con prisa?"_ en la documentación sobre [`async` y `await`](../async.md#in-a-hurry){.internal-link target=_blank}.

8. Note que esta *função de operação de rota* usa `def` regular em vez de `async def`.

    Como sempre, no FastAPI você pode combinar `def` e `async def` conforme necessário.

    Se você precisar de uma atualização sobre quando usar qual, confira a seção _"Com pressa?"_ na documentação sobre [`async` e `await`](../async.md#in-a-hurry){.internal-link target=_blank}.

	"math/rand"
	"testing"
	"time"

	"github.com/google/uuid"
	"github.com/minio/minio/internal/dsync"
)

func TestLocalLockerExpire(t *testing.T) {
	wResources := make([]string, 1000)
	rResources := make([]string, 1000)
	quorum := 0
	l := newLocker()
	ctx := t.Context()
	for i := range wResources {
		arg := dsync.LockArgs{
			UID:       mustGetUUID(),
			Resources: []string{mustGetUUID()},
			Source:    t.Name(),

## To `async` or not to `async` { #to-async-or-not-to-async }

As dependencies will also be called by **FastAPI** (the same as your *path operation functions*), the same rules apply while defining your functions.

You can use `async def` or normal `def`.

		if !ok {
			// Unexpected  inconsistency, delete.
			delete(l.lockUID, mapID)
			idx++
			continue
		}
		reply = true
		l.removeEntry(resource, dsync.LockArgs{UID: args.UID}, &lris)
		idx++
	}
}

func (l *localLocker) Refresh(ctx context.Context, args dsync.LockArgs) (refreshed bool, err error) {
	if ctx.Err() != nil {
		return false, ctx.Err()
	}

	defer l.getMutex()()
	if ctx.Err() != nil {

```Python
with open("file.txt") as file:
    file.read()
```

Nas versões mais recentes de Python, há também um **gerenciador de contexto assíncrono**. Você o usaria com `async with`:

```Python
async with lifespan(app):
    await do_stuff()
```