[ADD] Add `controlnet` func

app.py

@@ -179,6 +179,11 @@ def infer(
     image = pipe(**params).images[0]
     return image, seed
 
+
+def controlnet_params(show_extra):
+    return gr.update(visible=show_extra)
+
+
 examples = [
     "Astronaut in a jungle, cold color palette, muted colors, detailed, 8k",
     "An astronaut riding a green horse",