[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

fuzzy_logic/fuzzy_operations.py

@@ -142,4 +142,4 @@ def __str__(self):
     from test_fuzzy_logic import TestFuzzySet
 
     suite = unittest.TestLoader().loadTestsFromTestCase(TestFuzzySet)
-    unittest.TextTestRunner(verbosity=2).run(suite)
+    unittest.TextTestRunner(verbosity=2).run(suite)