{"ast_node_type":"variable","tokens":[{"end":71,"kind":"keyword","start":0,"text":"if"}]}
        if let AttrTokenTree::Token(last_token, spacing) = last_token {
        let last_token = stack_top.inner.pop().unwrap();
            let (unglued, _) = last_token.kind.break_two_token_op(break_last_token).unwrap();