gtk/tree_view_column.go
func (v *TreeViewColumn) SetSizing(sizing TreeViewColumnSizing) {
	C.gtk_tree_view_column_set_sizing(v.native(), C.GtkTreeViewColumnSizing(sizing))
}
func (v *TreeViewColumn) SetSizing(sizing TreeViewColumnSizing) {
	C.gtk_tree_view_column_set_sizing(v.native(), C.GtkTreeViewColumnSizing(sizing))
}
// void 	gtk_tree_view_column_set_sizing ()