Update app.py

app.py

@@ -43,6 +43,14 @@ from einops import rearrange
 import soundfile as sf
 import re
 
+from huggingface_hub import hf_hub_download
+
+checkpoint_path = hf_hub_download(
+    repo_id="Wan-AI/Wan2.1-I2V-14B-480P",
+    filename="models_t5_umt5-xxl-enc-bf16.pth",
+    repo_type="model"
+)
+
 def _validate_args(args):
     # Basic check
     assert args.ckpt_dir is not None, "Please specify the checkpoint directory."