Reformat test_bilateralize.py for ruff

Author: junukitashepard

message_ix_models/tests/tools/test_bilateralize.py

@@ -25,6 +25,7 @@
 # Get logger
 log = get_logger(__name__)
 
+
 def test_generate_edit_files():
     """
     Checks that required files are generated in both
@@ -69,6 +70,7 @@ def test_build_parameter_sheets():
         assert "trade" in test_dict[tec].keys()
         assert "flow" in test_dict[tec].keys()
 
+
 def test_bilat_scenario(request: pytest.FixtureRequest, test_context: Context):
     """
     Test bilateralization on a scenario.