{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"locs.push(MatcherLoc::SequenceSep"}]}
                        locs.push(MatcherLoc::SequenceSep { separator: separator.clone() });
                    if let Some(separator) = &seq.separator {
                        locs.push(MatcherLoc::SequenceKleeneOpAfterSep { idx_first });