code: def test_predict1(self):
      pred_img, out_path = self.module.predict(input="tests/test.jpg")
      self.assertIsInstance(pred_img, np.ndarray)
      self.assertIsInstance(out_path, str)
  
file_path: PaddleHub/modules/image/Image_editing/super_resolution/realsr/test.py
imports: import os
  import shutil
  import unittest
  import cv2
  import requests
  import numpy
  import paddlehub
label_desc: Use image node_id 6 for calling the TestHubModule obj's underlying member method code with example usage: obj.test_predict1() without return types