correct clear functino

app.py

@@ -734,10 +734,10 @@ def fake(message, history4):
 
 
 def clearall():
-    global memory_openai
-    global memory
-    memory_openai.clear()
-    memory.clear()
+    # global memory_openai
+    # global memory
+    # memory_openai.clear()
+    # memory.clear()
     return []
 
 def retry(history3):