final LlmChatRequest result = request.addMessage(message);

        assertSame(request, result);
        assertEquals(1, request.getMessages().size());
        assertEquals("Test message", request.getMessages().get(0).getContent());
    }

    @Test
    public void test_addSystemMessage() {
        final LlmChatRequest request = new LlmChatRequest();

        final LlmChatRequest result = request.addSystemMessage("System prompt");

        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

                .param("size", ComponentUtil.getFessConfig().getPageDictionaryMaxFetchSize())
                .execute()) {
            final Map<String, Object> contentMap = response.getContent(OpenSearchCurl.jsonParser());
            @SuppressWarnings("unchecked")
            final List<Map<String, Object>> fileList = (List<Map<String, Object>>) contentMap.get("file");

            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());

                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(),

     */
    public LlmChatResponse(final String content) {
        this.content = content;
    }

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

    /**
     * Sets the response content.
     *
     * @param content the content
     */
    public void setContent(final String content) {

     */
    public void setRole(final String role) {
        this.role = role;
    }

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

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

                        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) {

                } else {
                    pair.getSecond().add(new Pair<>(Pattern.compile(regex), entity.getContent()));
                }
            } else {
                pair.getFirst().put(toLowerCase(entity.getTerm()), entity.getContent());
            }
        });
        this.relatedContentMap = relatedContentMap;
        return relatedContentMap.size();
    }

    //                                                                            Accessor
    //                                                                            ========
    public String getContent() {
        checkSpecifiedProperty("content");
        return convertEmptyToNull(content);
    }

    public void setContent(String value) {
        registerModifiedProperty("content");