pre-commit fixes

Author: dstansby

tests/test_store/test_stateful.py

@@ -8,15 +8,13 @@
 from zarr.storage import LocalStore, ZipStore
 from zarr.testing.stateful import ZarrHierarchyStateMachine, ZarrStoreStateMachine
 
-
 pytestmark = [
     pytest.mark.slow_hypothesis,
     # TODO: work out where this warning is coming from and fix
     pytest.mark.filterwarnings("ignore:Unclosed client session:ResourceWarning"),
 ]
 
 
-
 def test_zarr_hierarchy(sync_store: Store):
     def mk_test_instance_sync() -> ZarrHierarchyStateMachine:
         return ZarrHierarchyStateMachine(sync_store)