final var config = ComponentUtil.getFessConfig();

        final String temp = config.getOrDefault(prefix + ".temperature", null);
        if (temp != null) {
            request.setTemperature(Double.parseDouble(temp));
        }
        final String maxTokens = config.getOrDefault(prefix + ".max.tokens", null);
        if (maxTokens != null) {
            request.setMaxTokens(Integer.parseInt(maxTokens));