} catch (final IOException ioe) {
                    logger.warn("Failed to send error response. error={}", ioe.getMessage());
                }
            }
        }
    }

    /**
     * Sends a Server-Sent Event (SSE) to the client.
     *
     * @param writer the print writer to write the event to
     * @param event the event name

    /**
     * Get the value for the key 'mail.send.mock'. <br>
     * The value is, e.g. true <br>
     * comment: Does it send mock mail? (true: no send actually, logging only)
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getMailSendMock();

    /**
     * Is the property for the key 'mail.send.mock' true? <br>
     * The value is, e.g. true <br>

    /**
     * Periodic poll that sends a heartbeat, processes new events, and cleans up expired documents.
     */
    protected void poll() {
        try {
            sendHeartbeat();
        } catch (final Exception e) {
            logger.debug("Failed to send heartbeat in poll.", e);
        }

        try {

        this.streamCloseTimeout = streamCloseTimeout;
    }

    /**
     * Sends a command to the process associated with the given session ID.
     * Uses finer-grained locking to avoid blocking other operations during I/O.
     *
     * @param sessionId unique identifier for the process session
     * @param command the command to send to the process
     * @throws JobNotFoundException if no process is found for the given session ID

            setup.setup(form -> {
                updateForm(fessConfig, form);
            });
        });
    }

    /**
     * Sends a test mail using the provided notification settings.
     *
     * @param form the mail form containing notification settings
     * @return HTML response after sending test mail
     */
    @Execute

            }
        };

        FessConfig fessConfig = createTestFessConfig();

        NotificationHelper notificationHelper = new NotificationHelper() {
            // Mock send method
            public void send(final Object postcard) {
                // Mock implementation
            }
        };

        // Register components
        ComponentUtil.register(searchEngineClient, "searchEngineClient");

            // notification
            try {
                crawler.sendMail(infoMap);
            } catch (final Exception e) {
                logger.warn("Failed to send notification mail.", e);
            }

        }
    }

    /**
     * Sends email notification with crawling results and statistics.
     * The email contains detailed information about the crawling session including

                            systemHelper.getCurrentTimeAsLong() - execTime, MemoryUtil.byteCountToDisplaySize(docList.getContentSize()),
                            MemoryUtil.getMemoryUsageLog());
                } else {

        discloser.setPlainText("Test Content");

        // Should call both sendToSlack and sendToGoogleChat
        try {
            notificationHelper.send(null, discloser);
        } catch (Exception e) {
            fail("send() should not throw an exception: " + e.getMessage());
        }
    }

    @Test
    public void test_toSlackMessage_withOnlySubject() {

            if (aggregations != null) {
                builder.facetResponse(new FacetResponse(aggregations));
            }

        });
        return builder.build();
    }

    /**
     * Sends a search request to OpenSearch with the specified parameters.
     *
     * @param query the search query string
     * @param params the search request parameters