utils.package_resources: reference migration guide
@@ -12,6 +12,7 @@ try:
except ImportError:
from importlib_metadata import distribution as get_distribution
+# See https://importlib-resources.readthedocs.io/en/latest/migration.html#pkg-resources-resource-filename
_file_manager = ExitStack()
atexit.register(_file_manager.close)
