From 2050a1061fafa1fc699da6239e307f68b229ff15 Mon Sep 17 00:00:00 2001
From: Terry Jan Reedy <tjreedy@udel.edu>
Date: Wed, 26 Aug 2015 23:37:14 -0400
Subject: [PATCH] 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 36507eea68..e62e6f5586 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 list(self.object.keys())
+
 def _stack_viewer(parent):
     root = tk.Tk()
     root.title("Test StackViewer")
-- 
2.50.0