* Valide les **structures complexes**:
    * Utilise les modèles hiérarchique de Pydantic, le `typage` Python pour les `Lists`, `Dict`, etc.
    * Et les validateurs permettent aux schémas de données complexes d'être clairement et facilement définis, validés et documentés sous forme d'un schéma JSON.

	if objInfo.DeleteMarker {
		return false
	}

	lhold := objectlock.GetObjectLegalHoldMeta(objInfo.UserDefined)
	if lhold.Status.Valid() && lhold.Status == objectlock.LegalHoldOn {
		return true
	}

	ret := objectlock.GetObjectRetentionMeta(objInfo.UserDefined)
	if ret.Mode.Valid() && (ret.Mode == objectlock.RetCompliance || ret.Mode == objectlock.RetGovernance) {
		t, err := objectlock.UTCNowNTP()
		if err != nil {

                  AttributeTypeAndValue(
                    type = COMMON_NAME,
                    value = "cash.app",
                  ),
                ),
              ),
            validity =
              Validity(
                notBefore = 0L,
                notAfter = 1000L,
              ),
            subject =
              listOf(
                listOf(
                  AttributeTypeAndValue(

		}
		return bindDN, nil
	}

	// Since the username parses as a valid DN, check that it exists and is
	// under a configured base DN in the LDAP directory.
	validDN, isUnderBaseDN, err := l.GetValidatedUserDN(conn, username)
	if err == nil && !isUnderBaseDN {
		return "", fmt.Errorf("Unable to find user DN: %w", err)
	}
	return validDN, err
}

	}

	// If a file we are watching has a change event, yield and let caller check validity
	select {
	case <-watcher.Events:
		// Something changed, and we must yield
		return nil
	case err := <-watcher.Errors:
		// We had a watch error - that's no good
		return err
	case <-ctx.Done():
		return ctx.Err()
	default:
		// Valid configuration; set isReady to true and wait for modifications before checking again

errors.failed_to_upload_mapping_file                 = Échec de l'envoi du fichier Mapping.
errors.invalid_kuromoji_token={0} n'est pas valide.
errors.invalid_kuromoji_segmentation=Le nombre de segmentations {0} ne correspond pas au nombre de lectures {1}.
errors.invalid_str_is_included="{1}" dans "{0}" n'est pas valide.
errors.blank_password=Le mot de passe est requis.
errors.invalid_confirm_password=Confirmer le mot de passe ne correspond pas.

```Python
q: Union[str, None] = Query(default=None, max_length=50)
```

Cela va valider les données, montrer une erreur claire si ces dernières ne sont pas valides, et documenter le paramètre dans le schéma `OpenAPI` de cette *path operation*.

## Rajouter plus de validation

Vous pouvez aussi rajouter un second paramètre `min_length` :

  //  6. Whether or not requests for CA certificates are allowed.
  optional string signerName = 7;

  // expirationSeconds is the requested duration of validity of the issued
  // certificate. The certificate signer may issue a certificate with a different
  // validity duration so a client must check the delta between the notBefore and
  // and notAfter fields in the issued certificate to determine the actual duration.
  //

| Params        | Value                                              |
| :--           | :--                                                |
| *Type*        | *Integer*                                          |
| *Valid Range* | *Minimum value of 900. Maximum value of 31536000.* |
| *Required*    | *No*                                               |

### Policy

				break
			}
		}
		if !found {
			logger.Fatal(fmt.Errorf("unknown algorithm %q passed to --sftp=%s\nValid algorithms: %v", algo, arg, strings.Join(allowed, ", ")), "unable to start SFTP server")
		}
	}
	if len(filteredAlgos) == 0 {
		logger.Fatal(fmt.Errorf("no valid algorithms passed to --sftp=%s\nValid algorithms: %v", arg, strings.Join(allowed, ", ")), "unable to start SFTP server")
	}
	return filteredAlgos
}