  #!/usr/bin/env python3
  import os
  import shutil
  import unittest
  
  os.environ["COMMA_CACHE"] = "/tmp/__test_cache__"
  from openpilot.tools.lib.url_file import URLFile, CACHE_DIR
  
 
</s> remove     shutil.rmtree(CACHE_DIR)

 </s> add  </s> remove 
os.environ["COMMA_CACHE"] = "/tmp/__test_cache__"
from openpilot.tools.lib.url_file import URLFile, CACHE_DIR
 </s> add from openpilot.tools.lib.url_file import URLFile
from tools.lib.tests import temporary_cache_dir
  #!/usr/bin/env python3
  import os

  import unittest
  
  os.environ["COMMA_CACHE"] = "/tmp/__test_cache__"
  from openpilot.tools.lib.url_file import URLFile, CACHE_DIR
  
keep keep replace keep keep keep keep keep
 Tests: test_caching reduce global state (#29681) 
tools/lib/tests/test_caching.py