Update app.py

app.py

@@ -44,7 +44,7 @@ def generate(
     # Preparing conversation history for processing.
     conversation = []
     # Adding system prompt to the conversation, if any.
-    conversation.append([{"from": "human", "value": system_prompt}])
+    conversation.append({"from": "human", "value": system_prompt})
     # Extending the conversation history with user and assistant interactions.
     for user, assistant in chat_history:
         conversation.extend([{"from": "human", "value": user}, {"from": "gpt", "value": assistant}])