Update app.py

app.py

@@ -157,7 +157,7 @@ iface = gr.Interface(fn=gen_ims,
   inputs=[#gr.inputs.Slider(minimum=1, maximum=1, step=1, default=1,label="Number of images"),
           #gr.inputs.Slider(minimum=0, maximum=200, step=1, label='Random seed', default=0),
           gr.Textbox(label="Text prompt"),
-          gr.Image(optional=True, label="Image prompt", type='filepath'),
+          gr.Image(label="Image prompt", type='filepath'),
           #gr.inputs.Slider(minimum=10, maximum=35, step=1, default=15,label="Number of steps")
           ], 
   outputs=[gr.Image(type="pil", label="Generated Image")],