doDelete(entity, null);
    }

    public int queryDelete(CBCall<GroupCB> cbLambda) {
        return doQueryDelete(createCB(cbLambda), null);
    }

    public int[] batchInsert(List<Group> list) {
        return batchInsert(list, null, null);
    }

    public int[] batchInsert(List<Group> list, RequestOptionCall<BulkRequestBuilder> call) {

        var bazar = "bazar"

        var bazool: Boolean = true

        var isFool: Boolean = true

        fun String.fooExt() {}

        fun Int.fooExt() {}

        val String.barExt: String
            get() = "bar"

        var Int.bazarExt: String
            get() = "bar"
            set(value) = Unit

        operator fun String.invoke(p: String, block: String.() -> Unit) = Unit

    }

    /**
     * The default current page number.
     */
    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

    /**
     * The total number of records available.
     */
    private int allRecordCount;

    /**
     * The total number of pages available.
     */
    private int allPageCount;

    /**
     * Whether a previous page exists.
     */
    private boolean existPrePage;

        doDelete(entity, null);
    }

    public int queryDelete(CBCall<DataConfigCB> cbLambda) {
        return doQueryDelete(createCB(cbLambda), null);
    }

    public int[] batchInsert(List<DataConfig> list) {
        return batchInsert(list, null, null);
    }

    public int[] batchInsert(List<DataConfig> list, RequestOptionCall<BulkRequestBuilder> call) {

        doDelete(entity, null);
    }

    public int queryDelete(CBCall<LabelTypeCB> cbLambda) {
        return doQueryDelete(createCB(cbLambda), null);
    }

    public int[] batchInsert(List<LabelType> list) {
        return batchInsert(list, null, null);
    }

    public int[] batchInsert(List<LabelType> list, RequestOptionCall<BulkRequestBuilder> call) {

        int numThreads = 8;
        int eventsPerThread = 200;
        ExecutorService executor = Executors.newFixedThreadPool(numThreads);
        CountDownLatch startLatch = new CountDownLatch(1);
        CountDownLatch doneLatch = new CountDownLatch(numThreads);
        AtomicInteger totalDrained = new AtomicInteger(0);

        for (int t = 0; t < numThreads; t++) {

    }

    /** Default page size for pagination */
    public static final int DEFAULT_PAGE_SIZE = 20;

    /** Default current page number */
    public static final int DEFAULT_CURRENT_PAGE_NUMBER = 1;

    /** Total number of records */
    private int allRecordCount;

    /** Total number of pages */
    private int allPageCount;

    /** Whether a previous page exists */
    private boolean existPrePage;

 */
public class CharMappingPager implements Serializable {

    private static final long serialVersionUID = 1L;

    /** Total number of records across all pages. */
    private int allRecordCount;

    /** Total number of pages available. */
    private int allPageCount;

    /** Flag indicating if a previous page exists. */
    private boolean existPrePage;

    /** Flag indicating if a next page exists. */

     */
    public StopwordsPager() {
        // do nothing
    }

    private static final long serialVersionUID = 1L;

    /** The total number of records. */
    private int allRecordCount;

    /** The total number of pages. */
    private int allPageCount;

    /** A flag indicating if a previous page exists. */
    private boolean existPrePage;

    /** A flag indicating if a next page exists. */

            return builder.build();
        }
    }

    static class TestSubSearcher extends RankFusionSearcher {

        private int mainSize;
        private int inSize;
        private int outSize;

        TestSubSearcher(int mainSize, int inSize, int outSize) {
            this.mainSize = mainSize;
            this.inSize = inSize;
            this.outSize = outSize;
        }