image upload bug fixed

app.py

@@ -39,7 +39,7 @@ with gr.Blocks() as demo:
     def respond(history):
         print("history", history)
         if len(history) == 1:
-            history.insert(0,{"role": "system", 'metadata': None, "content": "You are a helpful assistant.", 'options': None})
+            history.insert(0,{"role": "system", "content": "You are a helpful assistant."})
             # print("history after insert", history)
         messages = copy.deepcopy(history)
         for i, msg in enumerate(messages):
@@ -74,7 +74,7 @@ with gr.Blocks() as demo:
         response = response.choices[0].message.content.strip()
         # print("response:", response)
         # history.append({"role": "assistant", "content": response})
-        history.append({"role": "assistant", 'metadata': None, "content": "", 'options': None})
+        history.append({"role": "assistant", "content": ""})
 
         # return history
         print("history", history)