Fix reveal test

Author: mtsokol

numpy/_core/shape_base.py

@@ -477,6 +477,8 @@ def unstack(x, /, *, axis=0):
     ----------
     x : ndarray
         The array to be unstacked.
+    axis : int, optional
+        Axis along which the array will be split. Default: ``0``.
 
     Returns
     -------

numpy/typing/tests/data/reveal/shape_base.pyi

@@ -54,5 +54,5 @@ assert_type(np.kron(AR_f8, AR_f8), npt.NDArray[np.floating[Any]])
 assert_type(np.tile(AR_i8, 5), npt.NDArray[np.int64])
 assert_type(np.tile(AR_LIKE_f8, [2, 2]), npt.NDArray[Any])
 
-assert_type(np.unstack(AR_i8, axis=0), list[npt.NDArray[np.int64]])
-assert_type(np.unstack(AR_LIKE_f8, axis=0), list[npt.NDArray[Any]])
+assert_type(np.unstack(AR_i8, axis=0), tuple[npt.NDArray[np.int64]])
+assert_type(np.unstack(AR_LIKE_f8, axis=0), tuple[npt.NDArray[Any]])