/** The user service for managing user settings. */
    @Resource
    private UserService userService;

    /**
     * Retrieves user settings with pagination.
     *
     * @param body the search parameters for filtering and pagination
     * @return JSON response containing user settings list
     */
    // GET /api/admin/user/settings
    // PUT /api/admin/user/settings
    @Execute

    // GET /api/admin/fileconfig/settings
    // PUT /api/admin/fileconfig/settings
    /**
     * Returns list of file configuration settings.
     * Supports both GET and PUT requests for retrieving paginated file configuration settings.
     *
     * @param body search parameters for filtering and pagination
     * @return JSON response containing file configuration settings list with pagination info
     */
    @Execute

    // GET /api/admin/duplicatehost/settings
    // PUT /api/admin/duplicatehost/settings
    /**
     * Returns list of duplicate host settings.
     * Supports both GET and PUT requests for retrieving paginated duplicate host configurations.
     *
     * @param body search parameters for filtering and pagination
     * @return JSON response containing duplicate host settings list with pagination info
     */
    @Execute

import org.codelibs.fess.crawler.client.FesenClient;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.common.settings.Settings;
import org.opensearch.common.settings.Settings.Builder;
import org.opensearch.transport.client.Client;

/**
 * OpenSearch client implementation specifically for crawler operations.

import org.codelibs.fess.suggest.index.SuggestDeleteResponse;
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.codelibs.fess.suggest.settings.SuggestSettingsBuilder;
import org.codelibs.fess.suggest.util.SuggestUtil;
import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.common.lucene.search.function.CombineFunction;

    // GET /api/admin/relatedcontent/settings
    // PUT /api/admin/relatedcontent/settings
    /**
     * Returns list of related content settings.
     * Supports both GET and PUT requests for retrieving paginated related content configurations.
     *
     * @param body search parameters for filtering and pagination
     * @return JSON response containing related content settings list with pagination info
     */
    @Execute

         */
        public ApiConfigsResponse<T> settings(final List<T> settings) {
            this.settings = settings;
            total = settings.size();
            return this;
        }

        /**
         * Sets the total number of configuration settings.
         * @param total The total number of configuration settings.
         * @return The ApiConfigsResponse instance.
         */

    /**
     * Retrieves request header settings with pagination.
     *
     * @param body the search parameters for filtering and pagination
     * @return JSON response containing request header settings list
     */
    // GET /api/admin/reqheader/settings
    // PUT /api/admin/reqheader/settings
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});

    /**
     * Retrieves web authentication settings with pagination.
     *
     * @param body the search parameters for filtering and pagination
     * @return JSON response containing web authentication settings list
     */
    // GET /api/admin/webauth/settings
    // PUT /api/admin/webauth/settings
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});

    /**
     * Retrieves a list of related query settings.
     *
     * @param body search parameters for filtering and pagination
     * @return JSON response containing related query configurations
     */
    // GET /api/admin/relatedquery/settings
    // PUT /api/admin/relatedquery/settings
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});