tyConTuple_maybe :: TyCon -> Maybe TupleSort
tyConTuple_maybe (TupleTyCon {tyConTupleSort = sort}) = Just sort
tyConTuple_maybe :: TyCon -> Maybe TupleSort
tyConTuple_maybe (TupleTyCon {tyConTupleSort = sort}) = Just sort
tyConTuple_maybe (TupleTyCon {tyConTupleSort = sort}) = Just sort