diff --git a/tests/test_serializer.py b/tests/test_serializer.py
index 3e994e4..e9bbe5c 100644
--- a/tests/test_serializer.py
+++ b/tests/test_serializer.py
@@ -11,7 +11,6 @@
 # from unittest import mock
 
 
-
 DictT = t.Dict[str, t.Any]
 
 serializer = Serializer()