* objets JSON (`dict`).
    * listes JSON (`list`) définissant des types d'éléments.
    * Champs String (`str`), définition de longueur minimum ou maximale.
    * Nombres (`int`, `float`) avec valeur minimale and maximale, etc.

* Validation pour des types plus exotiques, tel que:
    * URL.
    * Email.
    * UUID.
    * ...et autres.

De la même façon que vous pouvez passer `None` comme premier argument pour l'utiliser comme valeur par défaut, vous pouvez passer d'autres valeurs.

Disons que vous déclarez le paramètre `q` comme ayant une longueur minimale de `3`, et une valeur par défaut étant `"fixedquery"` :

```Python hl_lines="7"
{!../../../docs_src/query_params_str_validations/tutorial005.py!}
```

!!! note "Rappel"

 *
 * @author Regina O'Dell
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class MinimalSet<E extends @Nullable Object> extends MinimalCollection<E> implements Set<E> {

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> of(E... contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], Arrays.asList(contents));
  }

 *
 * @author Regina O'Dell
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class MinimalSet<E extends @Nullable Object> extends MinimalCollection<E> implements Set<E> {

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> of(E... contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], Arrays.asList(contents));
  }

However, that doesn't necessarily mean a PR to add a value will be accepted.
The `values.yaml` API is intended to maintain a *minimal core set of configuration* that most users will use.
For bespoke use cases, [Helm Chart Customization](https://istio.io/latest/docs/setup/additional-setup/customize-installation-helm/#advanced-helm-chart-customization) can be used

    validations:
      required: false
  - type: textarea
    id: steps-to-reproduce
    attributes:
      label: Steps to Reproduce
      description: |
        Provide a [minimal, self-contained example](https://en.wikipedia.org/wiki/Minimal_reproducible_example) project demonstrating the problem as a GitHub repository or an attached archive.

#### Select a specific configuration profile

The simplest customization is to select a profile different to `default` e.g. `minimal`. See [manifests/profiles/minimal.yaml](../manifests/profiles/minimal.yaml):

```yaml
# minimal-install.yaml
apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
spec:
  profile: minimal
```

Use `istioctl` to generate the manifests for the new configuration profile:

```bash

        request.setRemoteRepositories(normalizeToArtifactRepositories(remoteRepositories, request));
        request.setProcessPlugins(false);
        request.setValidationLevel(ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL);

        try {
            return projectBuilder.build(artifact, allowStubModel, request).getProject();
        } catch (ProjectBuildingException e) {
            throw transformError(e);
        }
    }

    validations:
      required: false
  - type: textarea
    id: steps-to-reproduce
    attributes:
      label: Steps to Reproduce
      description: |
        Provide a [minimal, self-contained example](https://en.wikipedia.org/wiki/Minimal_reproducible_example) project demonstrating the problem as a GitHub repository or an attached archive.

   *
   * @since 21.0
   */
  boolean enclosesAll(Iterable<Range<C>> other);

  /** Returns {@code true} if this range set contains no ranges. */
  boolean isEmpty();

  /**
   * Returns the minimal range which {@linkplain Range#encloses(Range) encloses} all ranges in this
   * range set.
   *
   * @throws NoSuchElementException if this range set is {@linkplain #isEmpty() empty}
   */
  Range<C> span();