From 6cc75cc8b5bf9bdfc2bc79be9ee973e93a57840b Mon Sep 17 00:00:00 2001
From: Illviljan <14371165+Illviljan@users.noreply.github.com>
Date: Tue, 9 Jul 2024 18:13:11 +0200
Subject: [PATCH] Update _typing.py

---
 xarray/namedarray/_typing.py | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/xarray/namedarray/_typing.py b/xarray/namedarray/_typing.py
index d7e8d4a5b51..b052e5ee76e 100644
--- a/xarray/namedarray/_typing.py
+++ b/xarray/namedarray/_typing.py
@@ -12,7 +12,6 @@
     Literal,
     Protocol,
     SupportsIndex,
-    TypeAlias,
     TypeVar,
     Union,
     overload,
@@ -44,7 +43,7 @@ class Default(Enum):
 _T = TypeVar("_T")
 _T_co = TypeVar("_T_co", covariant=True)
 
-_generic: TypeAlias = Any
+_generic = Any
 # _generic = np.generic
 
 
@@ -69,8 +68,8 @@ def __eq__(self, other: _DType2[_generic], /) -> bool:
 
 
 _dtype = np.dtype
-_DType = TypeVar("_DType", bound=np.dtype[Any])
-_DType_co = TypeVar("_DType_co", covariant=True, bound=np.dtype[Any])
+_DType = TypeVar("_DType", bound=_dtype[Any])
+_DType_co = TypeVar("_DType_co", covariant=True, bound=_dtype[Any])
 # A subset of `npt.DTypeLike` that can be parametrized w.r.t. `np.generic`
 
 # _ScalarType = TypeVar("_ScalarType", bound=_generic)
@@ -87,9 +86,9 @@ def dtype(self) -> _DType_co: ...
 
 
 _DTypeLike = Union[
-    np.dtype[_ScalarType],
+    _dtype[_ScalarType],
     type[_ScalarType],
-    _SupportsDType[np.dtype[_ScalarType]],
+    _SupportsDType[_dtype[_ScalarType]],
 ]
 
 # For unknown shapes Dask uses np.nan, array_api uses None:
@@ -249,7 +248,7 @@ def __array_namespace__(self) -> ModuleType: ...
 ]
 
 # Corresponds to np.typing.NDArray:
-DuckArray = _arrayfunction[Any, np.dtype[_ScalarType_co]]
+DuckArray = _arrayfunction[Any, _dtype[_ScalarType_co]]
 
 
 @runtime_checkable