code: def sizeof_fmt(num, suffix="B"):
      for unit in ["", "Ki", "Mi", "Gi", "Ti"]:
          if abs(num) < 1024.0:
              return f"{num:3.2f}{unit}B"
          num /= 1024.0
  
imports: import argparse
  import math
  import os
  import time
  import torch
  import torch.nn
  from benchmark_dataset import BenchmarkLMDataset, collate_sentences_lm
  from torch.distributed import rpc
  from torch.distributed.pipeline.sync import Pipe
  from torch.distributed.pipeline.sync.utils import partition_model
  from torch.optim import Adam
  from torch.utils.data import DataLoader
label_desc: Use image node_id 1 for calling a global function with example usage: sizeof_fmt(num, suffix) and returns: num, unit, str