@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
     */

    }

    /**
     * Adds a user message to the request.
     *
     * @param content the message content
     * @return this request for method chaining
     */
    public LlmChatRequest addUserMessage(final String content) {
        messages.add(LlmMessage.user(content));
        return this;
    }

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