Update app.py

app.py

@@ -102,16 +102,16 @@ def setup_multiple_chains():
     )
 
     # --ConversationBufferMemory
-    #conversation_memory = ConversationBufferMemory(memory_key="chat_history", 
-                                                   #max_len=30,  # --retains only the last 30 exchanges
-                                                   #return_messages=True,
-    #)
+    conversation_memory = ConversationBufferMemory(memory_key="chat_history", 
+                                                   max_len=30,  # --retains only the last 30 exchanges
+                                                   return_messages=True,
+    )
     
     # --ConversationTokenBufferMemory
-    conversation_memory = ConversationTokenBufferMemory(memory_key="chat_history",
+    #conversation_memory = ConversationTokenBufferMemory(memory_key="chat_history",
                                                         max_token_limit=1318,
                                                         return_messages=True,
-    )
+    #)
 
     # --ConversationSummaryMemory
     #conversation_memory = ConversationSummaryMemory(memory_key="chat_history",