From 0c416e0e2e8138fa95edd9af199846c1c8f810b6 Mon Sep 17 00:00:00 2001
From: Terry Jan Reedy <tjreedy@udel.edu>
Date: Wed, 26 Aug 2015 23:37:09 -0400
Subject: Issue #24790: Restore unused function.

---
 Lib/idlelib/StackViewer.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/idlelib/StackViewer.py b/Lib/idlelib/StackViewer.py
index 542c0df..4752bfc 100644
--- a/Lib/idlelib/StackViewer.py
+++ b/Lib/idlelib/StackViewer.py
@@ -120,6 +120,9 @@ class VariablesTreeItem(ObjectTreeItem):
             sublist.append(item)
         return sublist
 
+    def keys(self):  # unused, left for possible 3rd parcy use
+        return self.object.keys()
+
 def _stack_viewer(parent):  # htest #
     root = tk.Tk()
     root.title("Test StackViewer")
-- 
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