setup
Description:
Emitted when a new listitem has been created and needs to be setup for use.
It is the first signal emitted for every listitem.
The [signal@Gtk.SignalListItemFactory:GtkSignalListItemFactory:teardown] signal is the opposite of this signal and can be used to
undo everything done in this signal.
Parameters:
| object |
The `GObject` to set up |