Black migration file

tests/test_project/app_alter_column_drop_not_null/migrations/0002_drop_not_null.py

@@ -9,8 +9,6 @@ class Migration(migrations.Migration):
 
     operations = [
         migrations.AlterField(
-            model_name='a',
+            model_name="a", name="not_null_field", field=models.IntegerField(null=True)
-            name='not_null_field',
+        )
-            field=models.IntegerField(null=True),
-        ),
     ]