code: def timeSince(since=None, s=None):
      if s is None:
          s = int(time.time() - since)
      m = math.floor(s / 60)
      s %= 60
      h = math.floor(m / 60)
      m %= 60
      return "%dh %dm %ds" % (h, m, s)
  
imports: import math
  import os
  import random
  import sys
  import time
  import warnings
  import numpy
  import numpy
  import shutil
  import logging
  import torch
  import torchvision.transforms
  import torchvision.datasets
  import torch.nn
label_desc: Use image node_id 1 for calling a global function with example usage: timeSince(since, s) and returns: unknown