{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"ty::Tuple(types)"}]}
        ty::Tuple(types) if types.len() == 2 => {
    Some(match ty.kind() {
            (clif_type_from_ty(tcx, types[0])?, clif_type_from_ty(tcx, types[1])?)