fix flake8 findings

src/simplezfs/zfs.py

@@ -159,7 +159,7 @@ class ZFS:
         :raises DatasetNotFound: if the fileset could not be found.
         :raises ValidationError: if validating the parameters failed.
         '''
-        real_use_pe_helper = use_pe_helper if use_pe_helper is not None else self.use_pe_helper
+        # real_use_pe_helper = use_pe_helper if use_pe_helper is not None else self.use_pe_helper
         raise NotImplementedError(f'not implemented yet')
 
     def set_property(self, dataset: str, key: str, value: str, *, metadata: bool = False, overwrite_metadata_namespace: Optional[str] = None) -> None:

src/simplezfs/zpool_native.py

@@ -10,5 +10,5 @@ from .zpool import ZPool
 class ZPoolNative(ZPool):
 
     def __init__(self, *, metadata_namespace: Optional[str] = None, pe_helper: Optional[str] = None,
-            use_pe_helper: bool = False, **kwargs) -> None:
+                 use_pe_helper: bool = False, **kwargs) -> None:
         super().__init__(metadata_namespace=metadata_namespace, pe_helper=pe_helper, use_pe_helper=use_pe_helper)