fix flake8

Author: yangaws

tests/integ/test_tf_keras.py

@@ -21,6 +21,7 @@
 from tests.integ import DATA_DIR
 from tests.integ.timeout import timeout_and_delete_endpoint_by_name, timeout
 
+
 @pytest.mark.continuous_testing
 def test_keras(sagemaker_session, tf_full_version):
     script_path = os.path.join(DATA_DIR, 'cifar_10', 'source')