code: def test_predict4(self):
      self.assertRaises(
          AttributeError, self.module.predict, img="no.jpg"
      )
  
file_path: PaddleHub/modules/image/keypoint_detection/openpose_body_estimation/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_predict4() without return types