Is it possible to define actions in blueprint or builder xml?

so i’m testing some stuff in workbench, because i wanted to try closing a bug in gnome-builder, and i need actions

is it possible to do this? if i try to just add a Gio.PropertyAction as a child of a widget in blueprint, i get re.sonny.Workbench-WARNING **: Invalid object type 'PropertyAction', and no action, it seems

I think you can specify signal handler callback name and action name (if the object supports actions) in builder XML.