https://grails.apache.org/docs/snapshot/api/grails/web/mvc/FlashScope.html
FlashScope (Grails 8.0.0-SNAPSHOT)
grailssnapshot
https://grails.apache.org/docs/latest/api/grails/web/mvc/FlashScope.html
FlashScope (Grails 8.0.0-M1)
grails
https://grails.apache.org/docs/5.3.2/api/grails/web/mvc/FlashScope.html
FlashScope (Grails 5.3.2)
grails