diff --git a/python/helpers/python-skeletons/os/__init__.py b/python/helpers/python-skeletons/os/__init__.py
index 693818ce40e1..058383bad3db 100644
--- a/python/helpers/python-skeletons/os/__init__.py
+++ b/python/helpers/python-skeletons/os/__init__.py
@@ -319,7 +319,7 @@ def popen(command, mode='r', bufsize=-1):
     pass
 
 
-class _wrap_close:
+class _wrap_close(io.TextIOWrapper[unicode]):
     def __init__(self, stream, proc):
         """
         :type stream: io.TextIOWrapper[unicode]
@@ -342,9 +342,6 @@ class _wrap_close:
     def __exit__(self, *args):
         pass
 
-    def __getattr__(self, name):
-        pass
-
     def __iter__(self):
         """
         :rtype: collections.Iterator[unicode]