code: def test_keypoint_detection3(self):
      results = self.module.keypoint_detection(
          images=[cv2.imread("tests/test.jpg")],
          use_gpu=False,
          visualization=True,
      )
      kps = results[0]["data"][0]
      self.assertIsInstance(kps, list)
  
file_path: PaddleHub/modules/image/keypoint_detection/face_landmark_localization/test.py
imports: import os
  import shutil
  import unittest
  import cv2
  import requests
  import paddlehub
label_desc: Use image node_id 5 for calling the TestHubModule obj's underlying member method code with example usage: obj.test_keypoint_detection3() without return types