): List<R> {
    if (list.isEmpty()) {
        return noElementSplitFunction(expectedBucketNumber)
    }
    if (expectedBucketNumber == 1) {
        return listOf(smallElementAggregateFunction(list))
    }

    val roughSizeOfEachBucket = list.sumOf(toIntFunction) / expectedBucketNumber
    if (roughSizeOfEachBucket == 0) {

        return doBatchInsert(new BulkList<>(list, call, entityCall), null);
    }

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

    public int[] batchUpdate(List<CrawlingInfo> list, RequestOptionCall<BulkRequestBuilder> call) {
        return batchUpdate(list, call, null);
    }

    public int[] batchUpdate(List<CrawlingInfo> list, RequestOptionCall<BulkRequestBuilder> call,

        return doBatchInsert(new BulkList<>(list, call, entityCall), null);
    }

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

    public int[] batchUpdate(List<ElevateWord> list, RequestOptionCall<BulkRequestBuilder> call) {
        return batchUpdate(list, call, null);
    }

    public int[] batchUpdate(List<ElevateWord> list, RequestOptionCall<BulkRequestBuilder> call,

        return doBatchInsert(new BulkList<>(list, call, entityCall), null);
    }

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

    public int[] batchUpdate(List<PathMapping> list, RequestOptionCall<BulkRequestBuilder> call) {
        return batchUpdate(list, call, null);
    }

    public int[] batchUpdate(List<PathMapping> list, RequestOptionCall<BulkRequestBuilder> call,

        /**
         * The total number of configuration settings.
         */
        protected long total = 0;

        /**
         * Sets the list of configuration settings and updates the total count.
         * @param settings The list of configuration settings.
         * @return The ApiConfigsResponse instance.
         */
        public ApiConfigsResponse<T> settings(final List<T> settings) {

    }

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

    public int[] batchInsert(List<FileAuthentication> list, RequestOptionCall<BulkRequestBuilder> call) {
        return batchInsert(list, call, null);
    }

    public int[] batchInsert(List<FileAuthentication> list, RequestOptionCall<BulkRequestBuilder> call,

        return doBatchInsert(new BulkList<>(list, call, entityCall), null);
    }

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

    public int[] batchUpdate(List<FileConfig> list, RequestOptionCall<BulkRequestBuilder> call) {
        return batchUpdate(list, call, null);
    }

    public int[] batchUpdate(List<FileConfig> list, RequestOptionCall<BulkRequestBuilder> call,

        return doBatchInsert(new BulkList<>(list, call, entityCall), null);
    }

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

    public int[] batchUpdate(List<SearchLog> list, RequestOptionCall<BulkRequestBuilder> call) {
        return batchUpdate(list, call, null);
    }

    public int[] batchUpdate(List<SearchLog> list, RequestOptionCall<BulkRequestBuilder> call,

        assertEquals("タイトル", map.get("title"));
        assertEquals("第一章 第一節 ほげほげふがふが LINK 第2章 第2節", map.get("body"));
        final List<String> list = new ArrayList<String>();
        list.add("リスト1");
        list.add("リスト2");
        list.add("リスト3");
        assertEquals(list, map.get("list"));
    }

    public void test_getData_dataMap_entity() throws Exception {
        final String value = "<?xml version=\"1.0\"?>\n"//

            .where(
                new TypeCapture<List<T>>() {}.capture(),
                new TypeCapture<List<String>>() {}.capture())
            .resolveType(t));
    assertEquals(
        Types.subtypeOf(String.class),
        new TypeResolver()
            .where(
                new TypeCapture<List<T>>() {}.capture(),
                new TypeCapture<List<? extends String>>() {}.capture())
            .resolveType(t));