feat: complete ExtensionArrays

pandas-stubs/_libs/arrays.pyi

@@ -0,0 +1,38 @@
+from collections.abc import Sequence
+from typing import Any
+
+import numpy as np
+from typing_extensions import Self
+
+from pandas._typing import (
+    AnyArrayLikeInt,
+    AxisInt,
+    DtypeObj,
+    Shape,
+)
+
+class NDArrayBacked:
+    _dtype: DtypeObj
+    _ndarray: np.ndarray
+    def __setstate__(self, state: Any) -> None: ...
+    def __len__(self) -> int: ...
+    @property
+    def shape(self) -> Shape: ...
+    @property
+    def ndim(self) -> int: ...
+    @property
+    def size(self) -> int: ...
+    @property
+    def nbytes(self) -> int: ...
+    def copy(self, order=...) -> Self: ...
+    def delete(self, loc, axis=...) -> Self: ...
+    def swapaxes(self, axis1, axis2) -> Self: ...
+    def repeat(
+        self,
+        repeats: int | Sequence[int] | AnyArrayLikeInt,
+        axis: AxisInt | None = None,
+    ) -> Self: ...
+    def reshape(self, *args: Any, **kwargs: Any) -> Self: ...
+    def ravel(self, order=...) -> Self: ...
+    @property
+    def T(self) -> Self: ...