[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

xarray/core/types.py

@@ -2,7 +2,7 @@
 
 import datetime
 import sys
-from collections.abc import Hashable, Iterator, Mapping, Sequence, Collection
+from collections.abc import Collection, Hashable, Iterator, Mapping, Sequence
 from typing import (
     TYPE_CHECKING,
     Any,

xarray/core/utils.py

@@ -1045,7 +1045,7 @@ def parse_dims(
     if isinstance(dim, Collection) and not isinstance(dim, str):
         dim = tuple(dim)
     else:
-        dim = (dim, )
+        dim = (dim,)
 
     if check_exists:
         _check_dims(set(dim), set(all_dims))

xarray/tests/test_utils.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from collections.abc import Hashable, Iterable
+from collections.abc import Hashable
 
 import numpy as np
 import pandas as pd