Update free_lunch_utils.py

free_lunch_utils.py

@@ -1,6 +1,6 @@
 import torch
 import torch.fft as fft
-from diffusers.models.unet.unet_2d_condition import logger
+from diffusers.models.unets.unet_2d_condition import logger
 from diffusers.utils import is_torch_version
 from typing import Any, Dict, List, Optional, Tuple, Union