format

python_tests/artifact/test_backend.py

@@ -181,7 +181,9 @@ def test_successful_trial_artifact_retrieval() -> None:
         assert body == b"dummy_content"
 
 
-DUMMY_DATA_URL = f"data:text/plain; charset=utf-8,{base64.b64encode(b'dummy_content').decode('utf-8')}"
+DUMMY_DATA_URL = (
+    f"data:text/plain; charset=utf-8,{base64.b64encode(b'dummy_content').decode('utf-8')}"
+)
 
 
 def test_upload_artifact_invalid_no_trial() -> None:
@@ -202,6 +204,7 @@ def test_upload_artifact_invalid_no_trial() -> None:
         )
         assert status == 500  # TODO(contramundum53): This should return 400
 
+
 def test_upload_artifact_invalid_complete_trial() -> None:
     storage = optuna.storages.InMemoryStorage()