diff --git a/test/test_ops.py b/test/test_ops.py
index 2976c16..36bd9b5 100644
--- a/test/test_ops.py
+++ b/test/test_ops.py
@@ -1,5 +1,5 @@
-# Owner(s): ["module: unknown"]
-import contextlib
+
+
 import copy
 import inspect
 import itertools