Update chatbot.py

chatbot.py

@@ -17,8 +17,7 @@ class Comsatsbot:
 
 
         # Initialize memory buffer and MongoDB connection
-        self.memory = ConversationTokenBufferMemory(llm=self.llm, max_token_limit=3000, memory_key="chat_history",  # optional but recommended
-    return_messages=True  )
+        self.memory = ConversationTokenBufferMemory(llm=self.llm, max_token_limit=3000, return_messages=True  )
         self.chats_collection = chats_collection
         self.index_path = index_path
         self.hf = hf