{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"Ty::Tuple(tys)"}]}
            Ty::Tuple(tys) => tys.iter().any(|ty| ty.is_empty()),
            Ty::Bool | Ty::U8 => false,
            Ty::Enum(tys) => tys.iter().all(|ty| ty.is_empty()),