{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"Region,"}]}
    Region, RigidTy, Ty, TyConst, TyKind, VariantIdx,
    AdtDef, ClosureDef, CoroutineClosureDef, CoroutineDef, GenericArgs, MirConst, Movability,
};