{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"tokens.push(Group::new(Delimiter::Brace,"}]}
    tokens.push(Group::new(Delimiter::Brace, fn_stream).into());
    fn_stream.extend(vec![t!("fn"), t!("bar"), t!(()), t!({})]);
    res.extend(tokens);