still not working

app.py

@@ -14,6 +14,8 @@ def generate_model(img):
     model,file=iface(img)
     return model,file
 
+def foo(seed,psi):
+    return img
 
 demo = gr.Blocks()
 
@@ -37,7 +39,8 @@ with demo:
     file= gr.File(label="Download 3D Model")
 
   
-  b0.click(generate_image,inputs=[seed,psi],outputs=output_image)
+  b0.click(foo,inputs=[seed,psi],outputs=[output_image])
+  #b0.click(generate_image,inputs=[seed,psi],outputs=output_image)
   #b1.click(generate_model, inputs=outputImage, outputs=[model,file])
 
 demo.launch(enable_queue=True, debug=True)