add queuing and password

app.py

@@ -63,5 +63,8 @@ iface = gr.Interface(
     description="Enter the attributes for your profile picture."
 )
 
-# Run the Gradio app with queuing enabled
-iface.launch(queue=True)
+# Enable queuing with a concurrency limit of 2
+iface.queue(concurrency_count=2)
+
+# Run the Gradio app
+iface.launch()