{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"self.tree.vis.arena"}]}
        self.tree.vis.arena = self.visibilities.into_iter().collect();
        self.top_level = item_owner.items().flat_map(|item| self.lower_mod_item(&item)).collect();
        self.tree.top_level = self.top_level.into_boxed_slice();