{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"TokenTree::Delimited(..,"}]}
                        TokenTree::Delimited(.., second_delim, second_tts),
                        TokenTree::Token(Token { kind: token::FatArrow, .. }, _),
                    ] if macro_delim == &Delimiter::Parenthesis => {