public static String commaSeparated(Collection<?> values) {
        StringBuilder sb = new StringBuilder();
        for (Object value : values) {
            sb.append(value.toString().replaceAll(",", "\\\\,")).append(",");
        }

        if (sb.length() > 0) {
            sb.setLength(sb.length() - 1);
        }
        return sb.toString();
    }
Name of the group under which client metrics appear
client-v2/src/main/java/com/clickhouse/client/api/ClientConfigProperties.java