code: func (v *ListBox) GetRowAtIndex(index int) *ListBoxRow {
  	c := C.gtk_list_box_get_row_at_index(v.native(), C.gint(index))
  	if c == nil {
  		return nil
  	}
  	return wrapListBoxRow(glib.Take(unsafe.Pointer(c)))
  }
docs: // GetRowAtIndex is a wrapper around gtk_list_box_get_row_at_index().