fix class pybind test

Author: varunagrawal

tests/expected/python/class_pybind.cpp

@@ -43,7 +43,10 @@ PYBIND11_MODULE(class_py, m_) {
         .def("return_matrix1",[](Test* self, const gtsam::Matrix& value){return self->return_matrix1(value);}, py::arg("value"))
         .def("return_vector2",[](Test* self, const gtsam::Vector& value){return self->return_vector2(value);}, py::arg("value"))
         .def("return_matrix2",[](Test* self, const gtsam::Matrix& value){return self->return_matrix2(value);}, py::arg("value"))
+        .def("return_vector2",[](Test* self, const gtsam::Vector& value){return self->return_vector2(value);}, py::arg("value"))
+        .def("return_matrix2",[](Test* self, const gtsam::Matrix& value){return self->return_matrix2(value);}, py::arg("value"))
         .def("arg_EigenConstRef",[](Test* self, const gtsam::Matrix& value){ self->arg_EigenConstRef(value);}, py::arg("value"))
+        .def("push_back",[](Test* self, gtsam::Key key){ self->push_back(key);}, py::arg("key"))
         .def("return_field",[](Test* self, const Test& t){return self->return_field(t);}, py::arg("t"))
         .def("return_TestPtr",[](Test* self, const std::shared_ptr<Test> value){return self->return_TestPtr(value);}, py::arg("value"))
         .def("return_Test",[](Test* self, std::shared_ptr<Test> value){return self->return_Test(value);}, py::arg("value"))