code: def test_transform(img, ctx):
      transform_fn = transforms.Compose(
          [
              transforms.ToTensor(),
              transforms.Normalize(
                  [0.485, 0.456, 0.406], [0.229, 0.224, 0.225]
              ),
          ]
      )
      img = transform_fn(img)
      img = img.expand_dims(0).as_in_context(ctx)
      return img
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_transform(img, ctx) and returns: img