{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"preorder_rev(item).filter_map(ast::Lifetime::cast).for_each(|lifetime|"}]}
        preorder_rev(item).filter_map(ast::Lifetime::cast).for_each(|lifetime| {
            if let Some(subst) = self.lifetime_substs.get(&lifetime.syntax().text().to_string()) {