Add ZeroGPU decorator.

app.py

@@ -34,6 +34,7 @@ if os.path.exists(state_dict):
 model.eval()
 
 
+@spaces.GPU
 def pred_maps(image_1, image_2, image_3, image_4):
     images = [image_1, image_2, image_3, image_4]
     image_shapes = [image.shape[:2] for image in images]