def METHOD_NAME(self):
    image_processor = self.image_processing_class.from_dict(self.image_processor_dict)
    self.assertNotEqual(image_processor.image_size, 30)
    image_processor = self.image_processing_class.from_dict(self.image_processor_dict, image_size=42)
    self.assertEqual(image_processor.image_size, 42)