ruff pass

Signed-off-by: mingsing <[email protected]>

Author: mingsing

tests/clients/test_healthcheck_async.py

@@ -100,6 +100,7 @@ def side_effect(*args, **kwargs):
             # This will cause ~2 seconds of retries (1 second sleep after each failure)
             if call_count[0] <= 2:
                 import urllib.error
+
                 raise urllib.error.URLError('Connection refused')
             else:
                 return MockResponse(status=200)