code: def main():
      _main(sys.argv[1:])
  
file_path: petastorm/petastorm/benchmark/cli.py
imports: from __future__ import division
  from __future__ import print_function
  import argparse
  import logging
  import sys
  from petastorm.benchmark.throughput import reader_throughput, WorkerPoolType, ReadMethod
label_desc: Use image node_id 3 for calling a global function with example usage: main() without return types