code: def main() -> int:
      config_logging()
  
      logger.info("MXNet-CD Artifact Repository Tool")
  
      parser = argparse.ArgumentParser(
          description="Utility for uploading and downloading MXNet artifacts"
      )
  
      parser.add_argument(
          "--push",
          help="Upload artifact to repository",
          required=False,
          action="store_true",
      )
  
      parser.add_argument(
          "--pull",
          help="Download artifact from repository",
          required=False,
          action="store_true",
      )
  
      parser.add_argument(
          "--libmxnet",
          help="Path to libmxnet library",
          required=False,
          type=str,
      )
  
      parser.add_argument(
          "--licenses",
          help="Paths to license files",
          required=False,
          nargs=argparse.ZERO_OR_MORE,
          default=[],
      )
  
      parser.add_argument(
          "--dependencies",
          help="Paths to dependencies",
          required=False,
          nargs=argparse.ZERO_OR_MORE,
          default=[],
      )
  
      parser.add_argument(
          "--os", help="Target operating system", type=str
      )
  
      parser.add_argument(
          "--git-sha",
          help="MXNet repository commit id",
          required=False,
          type=str,
      )
  
      parser.add_argument(
          "--variant",
          help="MXNet binary variant. Eg. cpu, native, cu102, etc.",
          required=False,
          type=str,
      )
  
      parser.add_argument(
          "--libtype",
          help="libmxnet dependency linking type",
          choices=["static", "dynamic"],
          default="dynamic",
          required=False,
      )
  
      parser.add_argument(
          "--bucket",
          help="S3 bucket to store files",
          type=str,
          required=False,
      )
  
      parser.add_argument(
          "--destination",
          help="Destination for downloaded library and supporting files",
          type=str,
          default=os.getcwd(),
          required=False,
      )
  
      parser.add_argument(
          "--verbose",
          help="Verbose",
          action="store_true",
          default=False,
      )
  
      parser.add_argument(
          "--debug",
          help="Debug mode",
          action="store_true",
          default=False,
      )
  
      args = parser.parse_args()
  
      if args.verbose:
          logger.setLevel(logging.DEBUG)
  
      if args.debug:
          # Set debug level on root logger (ie. for all other loggers)
          logging.getLogger().setLevel(logging.DEBUG)
  
      if not args.push and not args.pull:
          logger.info(
              """Mode not specified. Using 'push' by default."""
          )
          args.push = True
  
      # libmxnet argument is required for push mode
      if args.push and not args.libmxnet:
          logger.error(
              "Path to libmxnet library must be specified when in push mode. "
              "Please specify it with --libmxnet."
          )
          return 1
  
      # sanitize license and dependency arrays
      # Remove empty or directory entries
      args.licenses = sanitize_path_array(args.licenses)
      args.dependencies = sanitize_path_array(args.dependencies)
  
      # expand destination path
      args.destination = os.path.abspath(args.destination)
  
      try:
          if args.push:
              push_artifact(args)
  
          elif args.pull:
              pull_artifact(args)
      except RuntimeError as err:
          logger.error(err)
          return 1
  
      return 0
  
imports: import argparse
  import ctypes
  import glob
  import logging
  import os
  import re
  import sys
  from itertools import chain
  from subprocess import CalledProcessError, check_output
  from typing import Dict, List, Optional
  import boto3
  import botocore.exceptions
  import yaml
label_desc: Use image node_id 22 for calling a global function with example usage: main() and returns: int, int, int