**FastAPI** saura que la valeur de `q` n'est pas requise grâce à la valeur par défaut `= None`.

Le `Union` dans `Union[str, None]` permettra à votre éditeur de vous offrir un meilleur support et de détecter les erreurs.

///

## Validation additionnelle

Nous allons imposer que bien que `q` soit un paramètre optionnel, dès qu'il est fourni, **sa longueur n'excède pas 50 caractères**.

## Importer `Query`

        // The normalization removes all duplicate backslashes, so \\\\server becomes \server
        // This test validates that paths which should be UNC but aren't detected due to normalization
        // still pass validation (which is the current behavior, though not ideal)

        // These paths normalize to \server\share which is NOT detected as UNC due to normalization

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.util;

import java.util.regex.Pattern;

/**
 * Comprehensive input validation utility for SMB protocol implementation.
 * Provides validation methods to prevent buffer overflows, injection attacks,
 * and other security vulnerabilities.
 */
public final class InputValidator {

    private InputValidator() {

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.login;

import jakarta.validation.constraints.NotBlank;

/**
 * Form for password change.
 */
public class PasswordForm {

    /**
     * Default constructor.
     */
    public PasswordForm() {
        // Default constructor

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.dict.kuromoji;

import org.lastaflute.web.validation.Required;

/**
 * The download form for Kuromoji dictionary.
 * This form is used for downloading Kuromoji dictionary files from the admin interface.
 *
 */
public class DownloadForm {

    /**

package org.codelibs.fess.app.web.api.admin.duplicatehost;

import org.codelibs.fess.app.web.admin.duplicatehost.CreateForm;

/**
 * Request body for creating duplicate host via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

package org.codelibs.fess.app.web.api.admin.fileauth;

import org.codelibs.fess.app.web.admin.fileauth.CreateForm;

/**
 * Request body for creating file authentication via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

 */
package org.codelibs.fess.app.web.api.admin.pathmap;

import org.codelibs.fess.app.web.admin.pathmap.CreateForm;

/**
 * Request body for creating path mapping via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

 */
package org.codelibs.fess.app.web.api.admin.user;

import org.codelibs.fess.app.web.admin.user.CreateForm;

/**
 * Request body for creating user via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

 */
package org.codelibs.fess.app.web.api.admin.webauth;

import org.codelibs.fess.app.web.admin.webauth.CreateForm;

/**
 * Request body for creating web authentication via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }