code: def test_list_videos():
      DIR = PATH_TO_MEDIA_FILES
  
      videos_list = caer.path.list_videos(
          DIR, recursive=True, use_fullpath=True
      )
  
      assert videos_list is not None
      assert (
          len(videos_list) == 3
      )  # There are 3 images & 3 videos in tests/media
  
      for i in videos_list:
          assert os.path.exists(i)
  
file_path: caer/tests/path/test_paths.py
imports: import os
  import caer
label_desc: Use image node_id 2 for calling a global function with example usage: test_list_videos() without return types