Update ppd/models/ppd.py

ppd/models/ppd.py

@@ -10,6 +10,7 @@ from ppd.utils.timesteps import Timesteps
 from ppd.utils.schedule import LinearSchedule
 from ppd.utils.sampler import EulerSampler
 from ppd.utils.transform import image2tensor, resize_1024, resize_1024_crop, resize_keep_aspect
+from huggingface_hub import hf_hub_download
 
 from ppd.models.depth_anything_v2.dpt import DepthAnythingV2
 from ppd.models.dit import DiT