code: def test_keypoint_detection1(self):
      results = self.module.keypoint_detection(
          paths=["tests/test.jpg"], visualization=False
      )
      kps = results[0]
      self.assertIsInstance(kps, list)
  
file_path: PaddleHub/modules/image/keypoint_detection/hand_pose_localization/test.py
imports: import os
  import shutil
  import unittest
  import cv2
  import requests
  import paddlehub
label_desc: Use image node_id 3 for calling the TestHubModule obj's underlying member method code with example usage: obj.test_keypoint_detection1() without return types