Fix flake8 errors

recircle/template/tests/test_models.py

 from django.test import TestCase
 from django.contrib.auth.models import User
-from unittest.mock import Mock
 from unittest.mock import patch
 
 from template.models import ImageTemplate
@@ -45,8 +44,11 @@ class TemplateModelsTest(TestCase):
                 'template.models.Image'
         ) as mock_image:
             user = self.create_user()
-            image = Image.objects.create(name="test_image", description="test image description",
-                                         uploaded_by_user=False, remote_id="123456789", created_by=user)
+            image = Image.objects.create(name="test_image",
+                                         description="test image description",
+                                         uploaded_by_user=False,
+                                         remote_id="123456789",
+                                         created_by=user)
             instance = self.create_instance()
             description = "test template description"
             name = "test_template"