Densepose documents need to be update for decode the results?

I want to decode the results.pkl
From the Densepose APPLY_NET documents:
it shows:

from densepose.data.structures import DensePoseResult
img_id, instance_id = 0, 0 # Look at the first image and the first detected instance
bbox_xyxy = data[img_id]['pred_boxes_XYXY'][instance_id]
result_encoded = data[img_id]['pred_densepose'].results[instance_id]
iuv_arr = DensePoseResult.decode_png_data(*result_encoded)

But for the latest scripts, DensePoseResult part has been removed, so how to get the iuv_arr from the pkl?

Thank you for your help!