def METHOD_NAME(self):
    print('Starting inference test for RetinaFace...')
    self.detector.load(os.path.join(self.temp_dir, "retinaface_resnet"))
    img = cv2.imread(os.path.join(self.temp_dir, "cov4.jpg"))
    self.assertIsNotNone(self.detector.infer(img),
                         msg="Returned empty BoundinBoxList.")
    del img
    gc.collect()
    print('Finished inference test for RetinaFace...')