added type ignore

Author: SaturnFromTitan

pandas/_testing.py

@@ -677,8 +677,8 @@ def _get_ilevel_values(index, level):
 
     # MultiIndex special comparison for little-friendly error messages
     if left.nlevels > 1:
-        left = cast(MultiIndex, left)
-        right = cast(MultiIndex, right)
+        left = cast(MultiIndex, left)  # type: ignore
+        right = cast(MultiIndex, right)  # type: ignore
 
         for level in range(left.nlevels):
             # cannot use get_level_values here because it can change dtype