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

pre-commit-ci[bot] · pre-commit-ci[bot] · commit b0086205475d · 2026-01-16T17:47:00.000Z
for more information, see https://pre-commit.ci
diff --git a/xarray/backends/api.py b/xarray/backends/api.py
@@ -3,7 +3,6 @@
 import os
 from collections.abc import (
     Callable,
-    Hashable,
     Iterable,
     Mapping,
     Sequence,
