buf.append(escapeJson(relatedContents));
            buf.append(',');
            buf.append("\"data\":[");
            if (!documentItems.isEmpty()) {
                boolean first1 = true;
                for (final Map<String, Object> document : documentItems) {
                    if (!first1) {
                        buf.append(',');
                    } else {
                        first1 = false;