{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"parse_sep_and_kleene_op(&mut"}]}
                        parse_sep_and_kleene_op(&mut iter, delim_span.entire(), sess);
                    let (separator, kleene) =
                    // Count the number of captured "names" (i.e., named metavars)