fix formatting in test_parameters.py

Author: nina-xu

tests/config/test_parameters.py

@@ -903,6 +903,7 @@ def test_returned_config_is_independent_of_saved(self):
         assert saved.training.batch_size == 8
         assert saved.generation.structured_generation.enabled is True
 
+
 class TestWarmupSteps:
     """`warmup_steps` mirrors the transformers contract: ratio below 1, whole steps at or above 1."""