209     class MyObject4a;  in TEST_SUBMODULE()
210     static std::unordered_set<MyObject4a *> myobject4a_instances;  in TEST_SUBMODULE()
211     class MyObject4a {  in TEST_SUBMODULE()  class
213         MyObject4a(int i) {  in TEST_SUBMODULE()  function in TEST_SUBMODULE::MyObject4a
227         virtual ~MyObject4a() {  in TEST_SUBMODULE()
232     py::class_<MyObject4a, std::unique_ptr<MyObject4a, py::nodelete>>(m, "MyObject4a")  in TEST_SUBMODULE()
234         .def_readwrite("value", &MyObject4a::value)  in TEST_SUBMODULE()
235         .def_static("cleanup_all_instances", &MyObject4a::cleanupAllInstances);  in TEST_SUBMODULE()
238     class MyObject4b : public MyObject4a {  in TEST_SUBMODULE()
240         MyObject4b(int i) : MyObject4a(i) { print_created(this); }  in TEST_SUBMODULE()
243     py::class_<MyObject4b, MyObject4a>(m, "MyObject4b")  in TEST_SUBMODULE()