code: def test_detect_text3(self):
      results = self.module.detect_text(
          images=[cv2.imread("tests/test.jpg")],
          use_gpu=True,
          visualization=False,
      )
      self.assertEqual(
          results[0]["data"],
          [
              [[258, 199], [382, 199], [382, 240], [258, 240]],
              [[281, 159], [359, 159], [359, 202], [281, 202]],
          ],
      )
  
file_path: PaddleHub/modules/image/text_recognition/chinese_text_detection_db_server/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_detect_text3() without return types