{"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":".flat_map(|it|"}]}
        .flat_map(|it| it.into_token());
        .flat_map(|attr| attr.syntax().descendants_with_tokens())
    stdx::iter_eq_by(attrs0, attrs1, |tok, tok2| tok.text() == tok2.text())