gtk/gtk.go
func (v *Assistant) GetNthPage(pageNum int) (*Widget, error) {
	c := C.gtk_assistant_get_nth_page(v.native(), C.gint(pageNum))
	if c == nil {
		return nil, fmt.Errorf("page %d is out of bounds", pageNum)
	}

	obj := glib.Take(unsafe.Pointer(c))
	return wrapWidget(obj), nil
}
func (v *Assistant) GetNthPage(pageNum int) (*Widget, error) {
	c := C.gtk_assistant_get_nth_page(v.native(), C.gint(pageNum))
	if c == nil {
		return nil, fmt.Errorf("page %d is out of bounds", pageNum)
	}

	obj := glib.Take(unsafe.Pointer(c))
	return wrapWidget(obj), nil
}
// GetNthPage is a wrapper around gtk_assistant_get_nth_page().