{"ast_node_type":"variable","tokens":[{"end":56,"kind":"keyword","start":0,"text":"let"}]}
        let b = b.view().as_token_trees().flat_tokens();
        let a = a.view().as_token_trees().flat_tokens();
        a.len() == b.len() && std::iter::zip(a, b).all(|(a, b)| check_tt_eq(a, b))