          pickle.dumps(unpickled_response)
  
      def test_pickling_cookie(self):
          response = SimpleTemplateResponse('first/test.html', {
                  'value': 123,
                  'fn': datetime.now,
          })
  
          response.cookies['key'] = 'value'
  
          response.render()
 
</s> remove                 'value': 123,
                'fn': datetime.now,
 </s> add             'value': 123,
            'fn': datetime.now, </s> remove                 'value': 123,
                'fn': datetime.now,
 </s> add             'value': 123,
            'fn': datetime.now, </s> remove                 'value': 123,
                'fn': datetime.now,
 </s> add             'value': 123,
            'fn': datetime.now, </s> remove                     'title': 'Other',
                    'author': self.writer.pk,
                    'isbn': '9876',
                    'suffix1': '0',
                    'suffix2': '0'
                })
 </s> add             'title': 'Other',
            'author': self.writer.pk,
            'isbn': '9876',
            'suffix1': '0',
            'suffix2': '0'
        }) </s> remove                     UserModel.USERNAME_FIELD: username
 </s> add                 UserModel.USERNAME_FIELD: username
            'value': 123,
            'fn': datetime.now,
          pickle.dumps(unpickled_response)
  
      def test_pickling_cookie(self):
          response = SimpleTemplateResponse('first/test.html', {
            'value': 123,
            'fn': datetime.now,
            'value': 123,
            'fn': datetime.now,
          })
  
          response.cookies['key'] = 'value'
  
          response.render()
keep keep keep keep replace replace keep keep keep keep keep
 Fixed #21288 -- Fixed E126 pep8 warnings 
tests/template_tests/test_response.py