This should be called at class initialization time to specify the GtkBuilder XML to be used to extend a widget.
For convenience, [method@Gtk.WidgetClass.set_template_from_resource] is also provided.
Note that any class that installs templates must call [method@Gtk.Widget.init_template] in the widget’s instance initializer.
A #GBytes holding the #GtkBuilder XML
See Implementation
This should be called at class initialization time to specify the GtkBuilder XML to be used to extend a widget.
For convenience, [method@Gtk.WidgetClass.set_template_from_resource] is also provided.
Note that any class that installs templates must call [method@Gtk.Widget.init_template] in the widget’s instance initializer.