Fetch an object build from the template XML for @widget_type in this @widget instance.
This will only report children which were previously declared with
gtk_widget_class_bind_template_child_full() or one of its
variants.
This function is only meant to be called for code which is private to the @widget_type which
declared the child and is meant for language bindings which cannot easily make use
of the GObject structure offsets.
Fetch an object build from the template XML for @widget_type in this @widget instance.
This will only report children which were previously declared with gtk_widget_class_bind_template_child_full() or one of its variants.
This function is only meant to be called for code which is private to the @widget_type which declared the child and is meant for language bindings which cannot easily make use of the GObject structure offsets.