type Retention struct {
	Mode        RetMode
	Validity    time.Duration
	LockEnabled bool
}

// Retain - check whether given date is retainable by validity time.
func (r Retention) Retain(created time.Time) bool {
	t, err := UTCNowNTP()
	if err != nil {
		lockLogIf(context.Background(), err)
		// Retain
		return true
	}
	return created.Add(r.Validity).After(t)
}

Quando você instala o FastAPI com `pip install "fastapi[standard]"`, ele vem com o grupo `standard` de dependências opcionais:

Utilizado pelo Pydantic:

* [`email-validator`](https://github.com/JoshData/python-email-validator) - para validação de email.

Utilizado pelo Starlette:

* [`httpx`](https://www.python-httpx.org) - Obrigatório caso você queira utilizar o `TestClient`.

When you install FastAPI with `pip install "fastapi[standard]"` it comes with the `standard` group of optional dependencies:

Used by Pydantic:

* [`email-validator`](https://github.com/JoshData/python-email-validator) - for email validation.

Used by Starlette:

* [`httpx`](https://www.python-httpx.org) - Required if you want to use the `TestClient`.

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package crypto

import (
	"context"
	"encoding/base64"

Когда вы устанавливаете FastAPI с помощью `pip install "fastapi[standard]"`, он идёт с группой опциональных зависимостей `standard`:

Используется Pydantic:

* [`email-validator`](https://github.com/JoshData/python-email-validator) — для проверки адресов электронной почты.

Используется Starlette:

* [`httpx`](https://www.python-httpx.org) — обязателен, если вы хотите использовать `TestClient`.

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"net/http"
	"net/http/httptest"

The following example shows how to get the details of the user with `{userid}` from `{realm}` realm:

```
curl \
  -H "Authorization: Bearer eyJhbGciOiJSUz..." \
  "http://localhost:8080/auth/admin/realms/{realm}/users/{userid}"
```

### Configure MinIO

Erstellen Sie einen echten JWT-Zugriffstoken und geben Sie ihn zurück.

{* ../../docs_src/security/tutorial004_an_py310.py hl[121:136] *}

### Technische Details zum JWT-„Subjekt“ `sub` { #technical-details-about-the-jwt-subject-sub }

Die JWT-Spezifikation besagt, dass es einen Schlüssel `sub` mit dem Subjekt des Tokens gibt.

Créez un `timedelta` avec la durée d'expiration du jeton.

Créez un véritable jeton d'accès JWT et renvoyez-le.

{* ../../docs_src/security/tutorial004_an_py310.py hl[121:136] *}

### Détails techniques au sujet du « subject » JWT `sub` { #technical-details-about-the-jwt-subject-sub }

La spécification JWT indique qu'il existe une clé `sub`, contenant le sujet du jeton.

Cuando instalas FastAPI con `pip install "fastapi[standard]"` viene con el grupo `standard` de dependencias opcionales:

Usadas por Pydantic:

* [`email-validator`](https://github.com/JoshData/python-email-validator) - para validación de correos electrónicos.

Usadas por Starlette:

* [`httpx`](https://www.python-httpx.org) - Requerido si deseas usar el `TestClient`.