Fix

app.py

@@ -47,5 +47,5 @@ iface = gr.Interface( happytt,[ gr.inputs.Slider(0, 1, step=0.1),gr.inputs.Slide
                                gr.inputs.Textbox(type='str',   
                                                  label="input prompt"),
                                gr.inputs.Textbox(type='str',   
-                                                 label="list of tokens, when to finish generating",value="[]")],"text", title = title, description = description )
+                                                 label="list of tokens, when to finish generating")],"text", title = title, description = description )
 iface.launch(debug=True)