Update api/ltx/vae_aduc_pipeline.py

api/ltx/vae_aduc_pipeline.py

@@ -8,7 +8,7 @@ import torch
 import os
 import torchvision.transforms.functional as TVF
 from PIL import Image
-from typing import List, Union, Tuple, Literal
+from typing import List, Union, Tuple, Literal, Optional
 from dataclasses import dataclass
 from pathlib import Path
 import sys