{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"locs.push(MatcherLoc::SequenceKleeneOpAfterSep"}]}
                        locs.push(MatcherLoc::SequenceKleeneOpAfterSep { idx_first });
                        locs.push(MatcherLoc::SequenceSep { separator: separator.clone() });
                    } else {