fix formatting

Author: mvantellingen

tests/test_xsd_builtins.py

@@ -380,10 +380,7 @@ class TestBase64Binary:
     def test_xmlvalue(self):
         instance = builtins.Base64Binary()
         assert instance.xmlvalue(b"hoi") == b"aG9p"
-        assert (
-            instance.xmlvalue("aG9p")
-            == "aG9p"
-        )
+        assert instance.xmlvalue("aG9p") == "aG9p"
 
     def test_pythonvalue(self):
         instance = builtins.Base64Binary()