An action block that offers content to other apps.
The fiber will pause until an app request the content on offer, usually by an “attach” button/menu, then choosing Automate flow as source.
The OK path should include a Content offer result block to complete the request, otherwise the request isn’t canceled until the fiber stops or the user does so manually.
Set a content MIME type input argument to limit the type of content offered by this fiber, the specific type requested is assigned to the content MIME type output variable.