Update app.py

app.py

@@ -151,7 +151,7 @@ with gr.Blocks(css="#chatbot {overflow-y:auto; min-height:400px;} ") as dialog_a
     with gr.Tab("ChatBot"):
         with gr.Row():
             with gr.Column(scale=1, min_width=600):
-                api_key = gr.Textbox(label="Your API Key", type="password")
+                api_key = gr.Textbox(label="Your API Key", type="password", required=True)
                 temperature_input = gr.inputs.Slider(minimum=0, maximum=1.0, default=0.5, step=0.01, label="Temperature")
                 max_tokens_input = gr.inputs.Slider(minimum=1, maximum=7500, default=50, step=10, label="Max Tokens")
                 top_p_input = gr.inputs.Slider(minimum=0.1, maximum=1.0, default=0.5, step=0.01, label="Top P")