How to use \n as a delimeter in dissect filter

Elastic Stack Logstash
5

Sir, actually I want to use double backslashes \n\n as a delimeter.

I am going to apply this on windows event log ID: 4624 which is going to be parsed to extract main portions of event logs like

dissect {
mapping => {
"message" => "%{?winlog_header}\n\n%{winlog_subject}\n\n%{winlog_logon}\n\n%{winlog_impersonation}\n\n%{winlog_newlogon}\n\n%{winlog_process}\n\n%{winlog_network}\n\n%{winlog_authentication}"
}
}

these main fields like winlog_subject, winlog_process will again be dissected with delimeter \n but the major portion has to be dissected with delimeter \n\n. That's why I showed here \n\n in the code and screenshot.

Thank you for your reply.