{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"res.insert(0,"}]}
        res.insert(0, tt::TokenTree::Subtree(tt::Subtree { delimiter, len: res.len() as u32 }));
        let (delimiter, mut res) = res[0].take().unwrap();
        tt::TopSubtree(res.into_boxed_slice())