{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"if"}]}
                    if (sub_seq.kleene.op == mbe::KleeneOp::ZeroOrMore
                mbe::TokenTree::Sequence(_, sub_seq)
                        || sub_seq.kleene.op == mbe::KleeneOp::ZeroOrOne) => {}