fix typing

Author: kratsg

src/pyhf/tensor/numpy_backend.py

@@ -210,7 +210,8 @@ def tolist(
         self, tensor_in: Tensor[T] | list[T]
     ) -> int | float | complex | list[T] | list[Any]:
         try:
-            return tensor_in.tolist()  # type: ignore[union-attr]
+            result = tensor_in.tolist()  # type: ignore[union-attr]
+            return cast(int | float | complex | list[T] | list[Any], result)
         except AttributeError:
             if isinstance(tensor_in, list):
                 return tensor_in
@@ -657,4 +658,5 @@ def transpose(self, tensor_in: Tensor[T]) -> ArrayLike:
 
         .. versionadded:: 0.7.0
         """
-        return tensor_in.transpose()
+        result = tensor_in.transpose()
+        return cast(ArrayLike, result)