gtk/tree_view_column.go
func (v *TreeViewColumn) PackEnd(cell ICellRenderer, expand bool) {
	C.gtk_tree_view_column_pack_end(v.native(), cell.toCellRenderer(), gbool(expand))
}
func (v *TreeViewColumn) PackEnd(cell ICellRenderer, expand bool) {
	C.gtk_tree_view_column_pack_end(v.native(), cell.toCellRenderer(), gbool(expand))
}
// PackEnd() is a wrapper around gtk_tree_view_column_pack_end().