String language = getSupportedLanguage(DocumentUtil.getValue(doc, fessConfig.getIndexFieldLang(), String.class));
        if (language == null) {
            for (final String f : langFields) {
                if (doc.containsKey(f)) {
                    language = detectLanguage(DocumentUtil.getValue(doc, f, String.class));
                    if (language != null) {

For this, you use the `TestClient` in a `with` statement, connecting to the WebSocket:

{* ../../docs_src/app_testing/tutorial002.py hl[27:31] *}

/// note

For more details, check Starlette's documentation for <a href="https://www.starlette.io/testclient/#testing-websocket-sessions" class="external-link" target="_blank">testing WebSockets</a>.

    * **Facile** : Fait pour être facile à utiliser et apprendre. Moins de temps passé à lire de la documentation.
    * **Concis** : Minimise la duplication de code. Plusieurs fonctionnalités à chaque déclaration de paramètre.
    * **Robuste** : Obtenez du code prêt pour être utilisé en production. Avec de la documentation automatique interactive.

On utilise alors l'argument `deprecated=True` de `Query` :

{* ../../docs_src/query_params_str_validations/tutorial010.py hl[18] *}

La documentation le présentera comme il suit :

# OpenAPI `docs`

Utilities to handle OpenAPI automatic UI documentation, including Swagger UI (by default at `/docs`) and ReDoc (by default at `/redoc`).

::: fastapi.openapi.docs.get_swagger_ui_html

::: fastapi.openapi.docs.get_redoc_html

::: fastapi.openapi.docs.get_swagger_ui_oauth2_redirect_html

            }
            final String url = DocumentUtil.getValue(doc, fessConfig.getIndexFieldThumbnail(), String.class);
            if (StringUtil.isBlank(url)) {
                throw new ThumbnailGenerationException("Invalid thumbnail: " + url);
            }
            final String configId = DocumentUtil.getValue(doc, fessConfig.getIndexFieldConfigId(), String.class);

Please read the [Development - Contributing](https://fastapi.tiangolo.com/contributing/) guidelines in the documentation site....

import java.io.File;
import java.io.FileInputStream;
import java.util.Map;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.app.web.base.FessSearchAction;
import org.codelibs.fess.util.DocumentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.ActionResponse;

import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletResponse;

/**

      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,
      and conversions to other media types.

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import org.codelibs.fess.app.web.base.login.OpenIdConnectCredential;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.DocumentUtil;

public class OpenIdConnectAuthenticatorTest extends UnitFessTestCase {
    public void test_parseJwtClaim() throws IOException {
        // Setup