learning history and multimodal, openai complained about wrong arguments

app.py

@@ -4,10 +4,11 @@ import os
 import os
 
 api_key = os.getenv("OPENAI_APIKEY")
-client = OpenAI(api_key=api_key)
+# client = OpenAI(api_key=api_key)
 
 
 def chat(message, history):
+
     history_openai_format = []
     for human, assistant in history:
         history_openai_format.append({"role": "user", "content": human })
@@ -15,6 +16,7 @@ def chat(message, history):
         
     history_openai_format.append({"role": "user", "content": message['text']})
   
+    return f"{history}\n----\n{message}\n----\n{history_openai_format}"
     response = client.chat.completions.create(
         model='gpt-3.5-turbo',
         messages= history_openai_format,