buf.append(",\"page_size\":").append(suggestResponse.getNum());

            if (!suggestResponse.getItems().isEmpty()) {
                buf.append(",\"data\":[");

                boolean first = true;
                for (final SuggestItem item : suggestResponse.getItems()) {
                    if (!first) {
                        buf.append(',');
                    }

            if (response.hasFailures()) {
                if (createOnly) {
                    final long realFailures = Arrays.stream(response.getItems())
                            .filter(item -> item.isFailed() && item.getFailure().getStatus() != RestStatus.CONFLICT)
                            .count();
                    if (realFailures > 0) {