Update app.py

app.py

@@ -43,14 +43,12 @@ def openai_chat_history(input, history):
 conversation_prompt = "Welcome to ChatRobo, kindly type in your enquiries: "
 
 # Set up the Gradio interface
-textbox = gr.inputs.Textbox(placeholder=conversation_prompt)
-textbox_output = gr.outputs.Textbox(label="ChatRobo Output")
-
 block = gr.Interface(
     fn=openai_chat_history, 
-    inputs=textbox, 
-    outputs=textbox_output
+    inputs=[gr.inputs.Textbox(placeholder=conversation_prompt)], 
+    outputs=[gr.outputs.Textbox(label="ChatRobo Output")]
 )
 
 # Launch the Gradio interface
-block.launch()
+block.launch() 
+