Update tests/test_utils_channels.py

tests/test_utils_channels.py

@@ -3,7 +3,7 @@ import sys
 import os
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
 from slic.utils.channels import *
-from unittest.mock import patch
+from unittest.mock import patch 
 
 import tempfile
 import warnings