@Test
    public void test_fluentBuilding() {
        final LlmChatRequest request = new LlmChatRequest().addSystemMessage("You are a helpful assistant")
                .addUserMessage("Hello!")
                .addAssistantMessage("Hi there!")
                .addUserMessage("How are you?")
                .setModel("llama3")
                .setMaxTokens(500)
                .setTemperature(0.5)
                .setStream(false);

        }
        this.lastAccessedAt = LocalDateTime.now();
    }

    /**
     * Adds a user message to this session.
     *
     * @param content the message content
     */
    public void addUserMessage(final String content) {
        addMessage(ChatMessage.userMessage(content));
    }

    /**
     * Adds an assistant message to this session.
     *
     * @param content the message content
     */

    }

    @Test
    public void test_trimHistoryAllUserMessages() {
        final ChatSession session = new ChatSession();
        session.addUserMessage("User 1");
        session.addUserMessage("User 2");
        session.addUserMessage("User 3");
        session.addUserMessage("User 4");

        // All user messages - trimming to 2 starts at index 2 which is user, no skip needed
        session.trimHistory(2);

                }
                return defaultValue;
            }
        });

        final ChatSession session = new ChatSession();
        session.addUserMessage("Q1");
        session.addAssistantMessage("A1");
        session.addUserMessage("Q2");
        session.addAssistantMessage("A2");

        final List<LlmMessage> history = chatClient.testExtractHistory(session);
        assertEquals(4, history.size());

            }
            final LlmChatRequest request = new LlmChatRequest();
            request.addSystemMessage(systemPrompt);
            request.addUserMessage(wrapUserInput(userMessage));
            applyPromptTypeParams(request, "intent");

            final LlmChatResponse response = chatWithConcurrencyControl(request);
            if (logger.isDebugEnabled()) {