code: def test_classification4(self):
      self.assertRaises(
          AssertionError, self.module.classification, paths=["no.jpg"]
      )
  
file_path: PaddleHub/modules/image/classification/resnet50_vd_dishes/test.py
imports: import os
  import shutil
  import unittest
  import cv2
  import requests
  import paddlehub
label_desc: Use image node_id 6 for calling the TestHubModule obj's underlying member method code with example usage: obj.test_classification4() without return types