code: def test_not_matching_get_cache_files_coco(self):
      cache_dir = self.create_tempdir()
      temp_dir = self.create_tempdir()
      coco_folder = os.path.join(temp_dir, "coco_data")
      shutil.copytree(
          tasks_test_utils.get_test_data_path("coco_data"), coco_folder
      )
      prev_cache_file = dataset_util.get_cache_files_coco(
          coco_folder, cache_dir
      )
      os.chmod(coco_folder, 0o700)
      os.chmod(os.path.join(coco_folder, "images"), 0o700)
      os.chmod(os.path.join(coco_folder, "labels.json"), 0o700)
      get_cache_files_and_assert_neq = (
          self._get_cache_files_and_assert_neq_fn(
              dataset_util.get_cache_files_coco
          )
      )
      # Test adding image
      test_utils.write_filled_jpeg_file(
          os.path.join(coco_folder, "images", "test.jpg"), [0, 0, 0], 50
      )
      prev_cache_file = get_cache_files_and_assert_neq(
          prev_cache_file, coco_folder, cache_dir
      )
      # Test modifying labels.json
      with open(os.path.join(coco_folder, "labels.json"), "w") as f:
          json.dump(
              {"images": [{"id": 1, "file_name": "000000000078.jpg"}]},
              f,
          )
      prev_cache_file = get_cache_files_and_assert_neq(
          prev_cache_file, coco_folder, cache_dir
      )
  
      # Test rename folder
      new_coco_folder = os.path.join(temp_dir, "coco_data_renamed")
      shutil.move(coco_folder, new_coco_folder)
      coco_folder = new_coco_folder
      prev_cache_file = get_cache_files_and_assert_neq(
          prev_cache_file, new_coco_folder, cache_dir
      )
  
imports: import hashlib
  import json
  import os
  import shutil
  from unittest import mock
  import tensorflow
  from mediapipe.model_maker.python.vision.core import test_utils
  from mediapipe.model_maker.python.vision.object_detector import dataset_util
  from mediapipe.tasks.python.test import test_utils
label_desc: Use image node_id 6 for calling the DatasetUtilTest obj's underlying member method code with example usage: obj.test_not_matching_get_cache_files_coco() without return types