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

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

Author: pre-commit-ci[bot]

pr_body_1.md

@@ -7,14 +7,16 @@ The `Enum` field's by-name deserialization uses `getattr(self.enum, val)` to loo
 ```python
 from enum import Enum
 
+
 class Color(Enum):
     RED = 1
     GREEN = 2
 
+
 # Current behavior - these don't raise errors:
-getattr(Color, "mro")         # <built-in method mro>
+getattr(Color, "mro")  # <built-in method mro>
 getattr(Color, "__members__")  # mappingproxy({...})
-getattr(Color, "__class__")    # <class 'EnumType'>
+getattr(Color, "__class__")  # <class 'EnumType'>
 ```
 
 When a user submits one of these attribute names as input, the `Enum` field returns the raw attribute/method object instead of an Enum member. Downstream code expecting an Enum member would break or behave unpredictably.
@@ -25,9 +27,9 @@ Replace `getattr(self.enum, val)` with `self.enum[val]`. The `[]` operator on En
 
 ```python
 # Before
-getattr(Color, "mro")     # returns <built-in method mro>
+getattr(Color, "mro")  # returns <built-in method mro>
 
-# After  
-Color["mro"]               # raises KeyError
-Color["RED"]               # returns Color.RED ✓
+# After
+Color["mro"]  # raises KeyError
+Color["RED"]  # returns Color.RED ✓
 ```