code: def norm(dim):
      return nn.GroupNorm(min(32, dim), dim)
  
imports: import os
  import argparse
  import logging
  import time
  import numpy
  import torch
  import torch.nn
  from torch.utils.data import DataLoader
  import torchvision.datasets
  import torchvision.transforms
label_desc: Use image node_id 3 for calling a global function with example usage: norm(dim) and returns: nn