/**
     * Gets the message content.
     *
     * @return the message content
     */
    public String getContent() {
        return content;
    }

    /**
     * Sets the message content.
     *
     * @param content the message content
     */
    public void setContent(final String content) {
        this.content = content;
    }

    /**
     * Gets the message timestamp.

        assertEquals("User 2", messages.get(0).getContent());
        assertEquals(ChatMessage.ROLE_ASSISTANT, messages.get(1).getRole());
        assertEquals("Assistant 2", messages.get(1).getContent());
        assertEquals(ChatMessage.ROLE_USER, messages.get(2).getRole());
        assertEquals("User 3", messages.get(2).getContent());
        assertEquals(ChatMessage.ROLE_ASSISTANT, messages.get(3).getRole());

        assertEquals("Q2", messages.get(1).getContent());
        assertEquals("A2", messages.get(2).getContent());
        assertEquals("Q3", messages.get(3).getContent());
        assertEquals("A3", messages.get(4).getContent());
        assertEquals("Q4", messages.get(5).getContent());
        assertEquals("A4", messages.get(6).getContent());
    }

    @Test

        assertEquals("Q1", history.get(0).getContent());
        assertEquals("assistant", history.get(1).getRole());
        assertEquals("A1", history.get(1).getContent());
        assertEquals("user", history.get(2).getRole());
        assertEquals("Q2", history.get(2).getContent());
        assertEquals("assistant", history.get(3).getRole());
        assertEquals("A2", history.get(3).getContent());
    }

    @Test

                final LlmChatResponse llmResponse = llmClientManager.generateAnswer(userMessage, Collections.emptyList(), history);
                final ChatMessage assistantMessage = ChatMessage.assistantMessage(llmResponse.getContent());
                session.addMessage(assistantMessage);
                logger.info("[RAG] Chat completed (unclear). sessionId={}, elapsedTime={}ms", session.getSessionId(),

            final String truncated = newest.getContent().substring(0, Math.min(budgetChars, newest.getContent().length()));
            request.addMessage(new LlmMessage(newest.getRole(), truncated));
            if (logger.isDebugEnabled()) {
                logger.debug("[RAG:ANSWER] Newest history message truncated to fit budget. originalLength={}, truncatedLength={}",
                        newest.getContent().length(), truncated.length());

                        result.getMessage().getContent() != null ? result.getMessage().getContent().length() : 0);
            }

            writeJsonResponse(response, HttpServletResponse.SC_OK,
                    createSuccessResponse(result.getSessionId(), result.getMessage().getContent(), result.getMessage().getSources()));

        } catch (final Exception e) {

            for (final LlmMessage msg : request.getMessages()) {
                logger.debug("[LLM] message: role={}, content={}", msg.getRole(), msg.getContent());
            }
        }
        try {
            final LlmClient client = getAvailableClient();
            if (logger.isDebugEnabled()) {

        String testContent = "42";
        byte[] data = testContent.getBytes("UTF-8");
        ContentCache cache = new ContentCache(data);
        response.setContentCache(cache);

        Integer result = response.getContent(r -> Integer.parseInt(r.getContentAsString()));

        assertEquals(Integer.valueOf(42), result);
    }

    @Test
    public void testCloseWithContentCache() throws IOException {

     *
     * @param <T> the type of the parsed content.
     * @param parser the function to parse the content.
     * @return the parsed content.
     */
    public <T> T getContent(final Function<CurlResponse, T> parser) {
        return parser.apply(this);
    }

    /**
     * Gets the content of the response as a string.
     *
     * @return the content as a string.