{"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"let"}]}
    let has_trailing_comma = args.syntax().last_token()?.prev_token().is_some_and(|token| {
    // The really last token is `)`; we need one before that.
        skip_trivia_token(token, Direction::Prev).is_some_and(|token| token.kind() == T![,])