{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"MatcherLoc::SequenceKleeneOpNoSep"}]}
            MatcherLoc::SequenceKleeneOpNoSep { .. } => None,
            MatcherLoc::Sequence { .. } => None,
            MatcherLoc::SequenceSep { .. } => None,