{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"CoroutineClosure(CoroutineClosureDef,"}]}
    CoroutineClosure(CoroutineClosureDef, GenericArgs),
    Coroutine(CoroutineDef, GenericArgs),
    Dynamic(Vec<Binder<ExistentialPredicate>>, Region, DynKind),