But with ORM mode, as Pydantic itself will try to access the data it needs from attributes (instead of assuming a `dict`), you can declare the specific data you want to return and it will be able to go and get it, even from ORMs.

## CRUD utils

Now let's see the file `sql_app/crud.py`.

In this file we will have reusable functions to interact with the data in the database.

**CRUD** comes from: **C**reate, **R**ead, **U**pdate, and **D**elete.

L'ajout d'un `\f` (un caractère d'échappement "form feed") va permettre à **FastAPI** de tronquer la sortie utilisée pour OpenAPI à ce stade.

Il n'apparaîtra pas dans la documentation, mais d'autres outils (tel que Sphinx) pourront utiliser le reste.

```Python hl_lines="19-29"
{!../../../docs_src/path_operation_advanced_configuration/tutorial004.py!}
```

## Réponses supplémentaires

 */
package okhttp3.internal.concurrent

import java.util.concurrent.BlockingQueue
import java.util.concurrent.SynchronousQueue
import java.util.concurrent.ThreadFactory
import java.util.concurrent.ThreadPoolExecutor
import java.util.concurrent.TimeUnit
import java.util.concurrent.locks.Condition
import java.util.concurrent.locks.ReentrantLock
import java.util.logging.Logger
import kotlin.concurrent.withLock

 */
package okhttp3.internal.concurrent

import assertk.assertThat
import assertk.assertions.isEqualTo
import java.io.Closeable
import java.util.AbstractQueue
import java.util.concurrent.BlockingQueue
import java.util.concurrent.Executors
import java.util.concurrent.TimeUnit
import java.util.logging.Logger
import kotlin.concurrent.withLock
import okhttp3.OkHttpClient
import okhttp3.TestUtil.threadFactory

/**

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package util

import common.Arch
import common.BuildToolBuildJvm
import common.JvmVendor
import common.JvmVersion
import common.KillProcessMode.KILL_LEAKED_PROCESSES_FROM_PREVIOUS_BUILDS

 * limitations under the License.
 */
package okhttp3.internal.http2

import java.io.Closeable
import java.io.IOException
import java.util.concurrent.locks.ReentrantLock
import java.util.logging.Level.FINE
import java.util.logging.Logger
import okhttp3.internal.connection.Locks.withLock
import okhttp3.internal.format
import okhttp3.internal.http2.Http2.CONNECTION_PREFACE

    // No dependency requirements for testing-support.
    if (project.name == "okhttp-testing-support") return@dependencies

    if (project.name == "mockwebserver3-junit5") {
      // JUnit 5's APIs need java.util.function.Function and java.util.Optional from API 24.
      signature(rootProject.libs.signature.android.apilevel24) { artifact { type = "signature" } }
    } else {
      // Everything else requires Android API 21+.

* Valider que `item_id` existe dans le chemin des requêtes `GET` et `PUT`.
* Valider que `item_id` est de type `int` pour les requêtes `GET` et `PUT`.
    * Si ce n'est pas le cas, le client voit une erreur utile et claire.
* Vérifier qu'il existe un paramètre de requête facultatif nommé `q` (comme dans `http://127.0.0.1:8000/items/foo?q=somequery`) pour les requêtes `GET`.

 * limitations under the License.
 */
package okhttp3

import java.util.ArrayDeque
import java.util.Collections
import java.util.Deque
import java.util.concurrent.ExecutorService
import java.util.concurrent.SynchronousQueue
import java.util.concurrent.ThreadPoolExecutor
import java.util.concurrent.TimeUnit
import java.util.concurrent.locks.ReentrantLock
import okhttp3.internal.assertNotHeld

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import java.io.Closeable
import java.io.IOException
import java.util.concurrent.LinkedBlockingDeque
import okhttp3.internal.concurrent.TaskFaker
import okhttp3.internal.connection.RealConnection
import okhttp3.internal.connection.RoutePlanner