🏷️ fix stubtest errors in lib._arrayterator_impl

Author: jorenham

.mypyignore-todo

@@ -15,7 +15,6 @@ numpy._pyinstaller.hook-numpy
 numpy.ctypeslib._ctypeslib
 numpy.fft.helper
 
-numpy.lib(._arrayterator_impl)?.Arrayterator.__array__
 numpy.lib.(_array_utils_impl|array_utils).normalize_axis_tuple
 numpy.lib._iotools.NameValidator.defaultdeletechars
 numpy.lib.format.open_memmap

src/numpy-stubs/lib/_arrayterator_impl.pyi

@@ -2,7 +2,7 @@
 
 from collections.abc import Generator
 from types import EllipsisType
-from typing import Any, Final, Generic, TypeAlias
+from typing import Any, Final, Generic, TypeAlias, overload
 from typing_extensions import TypeVar
 
 import numpy as np
@@ -12,6 +12,7 @@ __all__ = ["Arrayterator"]
 ###
 
 _ShapeT_co = TypeVar("_ShapeT_co", bound=tuple[int, ...], default=tuple[int, ...], covariant=True)
+_DTypeT = TypeVar("_DTypeT", bound=np.dtype[Any])
 _DTypeT_co = TypeVar("_DTypeT_co", bound=np.dtype[Any], default=np.dtype[Any], covariant=True)
 _ScalarT = TypeVar("_ScalarT", bound=np.generic)
 
@@ -37,3 +38,9 @@ class Arrayterator(np.ndarray[_ShapeT_co, _DTypeT_co], Generic[_ShapeT_co, _DTyp
     def __init__(self, /, var: np.ndarray[_ShapeT_co, _DTypeT_co], buf_size: int | None = None) -> None: ...  # pyright: ignore[reportInconsistentConstructor]
     def __getitem__(self, index: _AnyIndex, /) -> Arrayterator[tuple[int, ...], _DTypeT_co]: ...  # type: ignore[override]
     def __iter__(self) -> Generator[np.ndarray[tuple[int, ...], _DTypeT_co]]: ...
+
+    #
+    @overload  # type: ignore[override]
+    def __array__(self, /, dtype: _DTypeT_co | None = None, copy: bool | None = None) -> np.ndarray[_ShapeT_co, _DTypeT_co]: ...
+    @overload
+    def __array__(self, /, dtype: _DTypeT, copy: bool | None = None) -> np.ndarray[_ShapeT_co, _DTypeT]: ...