* @throws LlmException if LLM is not available
     */
    public void generateDirectAnswer(final String userMessage, final List<LlmMessage> history, final LlmStreamCallback callback) {
        if (logger.isDebugEnabled()) {
            logger.debug("[LLM] Delegating generateDirectAnswer. llmType={}", getLlmType());
        }
        getAvailableClient().generateDirectAnswer(userMessage, history, callback);
    }