Update app.py

app.py

@@ -117,7 +117,7 @@ with gr.Blocks(css=css) as demo:
     with gr.Column(elem_id="col_container"):
         openai_api_key = gr.Textbox(type='password', label="Enter your OpenAI API key here")
         chatbot = gr.Chatbot(elem_id="chatbot") 
-        with gr.Column(elem_id="input_textbox", line=3):
+        with gr.Column(elem_id="input_textbox", lines=3):
             inputs = gr.Textbox(placeholder="Hi there!", label="Type an input and press Enter")
         state = gr.State([]) 
         b1 = gr.Button()