def test_classifier_type_check_fail(self):
    backend_test_classifier_type_check_fail(VirtualAdversarialMethod, [ClassifierNeuralNetwork, ClassifierGradients])
def test_classifier_type_check_fail(self):
    backend_test_classifier_type_check_fail(VirtualAdversarialMethod, [ClassifierNeuralNetwork, ClassifierGradients])