fixed formatting

Signed-off-by: Joshua Rosenkranz <jmrosenk@us.ibm.com>

Author: JRosenkranz

tests/models/test_decoders.py

@@ -378,6 +378,7 @@ def __load_validation_info(
     else:
         return None
 
+
 class PersistentModel:
     """This class will either get a model that is pre-compiled (if compile_dynamic_sendnn) or re-create the model for each test"""