code: def collate_fn(batch):
      return cutmix_or_mixup(*default_collate(batch))
  
imports: import torch
  from torchvision.datasets import FakeData
  from torchvision.transforms import v2
  from torch.utils.data import DataLoader
  from torch.utils.data import default_collate
label_desc: Use image node_id 1 for calling a global function with example usage: collate_fn(batch) and returns: cutmix_or_mixup