Update app.py

app.py

@@ -7,7 +7,7 @@ prompt = st.chat_input(placeholder="Eg. How are you?")
 
 if prompt:
     output = Client.create_completion("gpt3", prompt)
-    user_pr = cont.chat_message
+    user_pr = cont.chat_message("user")
     user_pr.write(prompt)
     output_msg = cont.chat_message("assistant")
     output_msg.write(output)