code: def main(args):
      ray.init()
  
      benchmark = Benchmark("read-images")
      if args.single_node:
          run_images_benchmark_single_node(benchmark)
      elif args.multi_node:
          run_images_benchmark_multi_node(benchmark)
  
      benchmark.write_result()
  
file_path: ray/release/nightly_tests/dataset/read_images_benchmark.py
imports: import argparse
  import os
  import random
  import shutil
  import tempfile
  from typing import List, Tuple
  from PIL import Image
  import ray
  from benchmark import Benchmark
label_desc: Use image node_id 2 for calling a global function with example usage: main(args) without return types