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

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

Author: pre-commit-ci[bot]

tests/test_funcs.py

@@ -71,9 +71,9 @@ class Int(int):
             pass
 
         c = C(Int(10), [Int(1), 2])
-        expected = {'x': 10, 'y': [1, 2]}
+        expected = {"x": 10, "y": [1, 2]}
         assert expected == asdict(c)
-        assert type(asdict(c)['x']) is Int
+        assert type(asdict(c)["x"]) is Int
 
     def test_nested_lists(self, C):
         """