{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"self.top_level"}]}
        self.top_level = item_owner.items().flat_map(|item| self.lower_mod_item(&item)).collect();
    pub(super) fn lower_module_items(mut self, item_owner: &dyn HasModuleItem) -> ItemTree {
        self.tree.vis.arena = self.visibilities.into_iter().collect();