Remove other: Self type annotation

If `Self + NDArray` is performed, this prevents `mypy` from falling back to `ndarray.__radd__()`, which has a return type of `NDArray`. This ensures that the arithmetic type is always `Self`. The runtime type checking will ensure valid arguments are passed.

src/galois/_domains/_array.py

@@ -454,61 +454,61 @@ def astype(self, dtype, order="K", casting="unsafe", subok=True, copy=True):
 
     # pylint: disable=useless-super-delegation,no-member
 
-    def __add__(self, other: Self) -> Self:
+    def __add__(self, other: npt.NDArray) -> Self:
         return super().__add__(other)
 
-    def __iadd__(self, other: Self) -> Self:
+    def __iadd__(self, other: npt.NDArray) -> Self:
         return super().__iadd__(other)
 
-    def __radd__(self, other: Self) -> Self:
+    def __radd__(self, other: npt.NDArray) -> Self:
         return super().__radd__(other)
 
-    def __sub__(self, other: Self) -> Self:
+    def __sub__(self, other: npt.NDArray) -> Self:
         return super().__sub__(other)
 
-    def __isub__(self, other: Self) -> Self:
+    def __isub__(self, other: npt.NDArray) -> Self:
         return super().__isub__(other)
 
-    def __rsub__(self, other: Self) -> Self:
+    def __rsub__(self, other: npt.NDArray) -> Self:
         return super().__rsub__(other)
 
-    def __mul__(self, other: int | npt.NDArray | Self) -> Self:
+    def __mul__(self, other: int | npt.NDArray) -> Self:
         return super().__mul__(other)
 
-    def __imul__(self, other: int | npt.NDArray | Self) -> Self:
+    def __imul__(self, other: int | npt.NDArray) -> Self:
         return super().__imul__(other)
 
-    def __rmul__(self, other: int | npt.NDArray | Self) -> Self:
+    def __rmul__(self, other: int | npt.NDArray) -> Self:
         return super().__rmul__(other)
 
-    def __truediv__(self, other: Self) -> Self:
+    def __truediv__(self, other: npt.NDArray) -> Self:
         return super().__truediv__(other)
 
-    def __itruediv__(self, other: Self) -> Self:
+    def __itruediv__(self, other: npt.NDArray) -> Self:
         return super().__itruediv__(other)
 
-    def __rtruediv__(self, other: Self) -> Self:
+    def __rtruediv__(self, other: npt.NDArray) -> Self:
         return super().__rtruediv__(other)
 
-    def __floordiv__(self, other: Self) -> Self:
+    def __floordiv__(self, other: npt.NDArray) -> Self:
         return super().__floordiv__(other)  # pylint: disable=too-many-function-args
 
-    def __ifloordiv__(self, other: Self) -> Self:
+    def __ifloordiv__(self, other: npt.NDArray) -> Self:
         return super().__ifloordiv__(other)
 
-    def __rfloordiv__(self, other: Self) -> Self:
+    def __rfloordiv__(self, other: npt.NDArray) -> Self:
         return super().__rfloordiv__(other)
 
     def __neg__(self) -> Self:
         return super().__neg__()
 
-    def __mod__(self, other: Self) -> Self:
+    def __mod__(self, other: npt.NDArray) -> Self:
         return super().__mod__(other)
 
-    def __imod__(self, other: Self) -> Self:
+    def __imod__(self, other: npt.NDArray) -> Self:
         return super().__imod__(other)
 
-    def __rmod__(self, other: Self) -> Self:
+    def __rmod__(self, other: npt.NDArray) -> Self:
         return super().__rmod__(other)
 
     def __pow__(self, other: int | npt.NDArray) -> Self:
@@ -520,10 +520,10 @@ def __ipow__(self, other: int | npt.NDArray) -> Self:
     # def __rpow__(self, other) -> Self:
     #     return super().__rpow__(other)
 
-    def __matmul__(self, other: Self) -> Self:
+    def __matmul__(self, other: npt.NDArray) -> Self:
         return super().__matmul__(other)
 
-    def __rmatmul__(self, other: Self) -> Self:
+    def __rmatmul__(self, other: npt.NDArray) -> Self:
         return super().__rmatmul__(other)
 
     def __lshift__(self, other: int | npt.NDArray) -> Self: