What exactly does "delayed" do in the elasticsearch_service resource

In my recipe which uses the elasticsearch cookbook I have this line:
notifies :restart, 'elasticsearch_service[elasticsearch]', :delayed

I know what it does (restart service on config changes), but what does "delayed" do? I see this line in the docs, but not explanation of the delayed keyword. just curious if the delayed word is necessary or if there are other possible values for that.


Ah didn't release that was just a chef thing