Model from: https://huggingface.co/JunhaoZhuang/PowerPaint-v1
Based on runwayml/stable-diffusion-inpainting, the unet has been replaced with PowerPaint's unet,
and the token embedding (P_ctxt, P_shape, P_obj) newly added by PowerPaint has been integrated into the text_encoder.
Download python file at here, then run:
python3 demo.py