code: def probe(args: argparse.Namespace) -> argparse.Namespace:
      """
      Probes the system to set any arguments that weren't manually set.
      Modifies the input Namespace object with the probed parameters.
      :param args: The namespace object given by argparse.parse()
      """
      logger.debug(
          "Trying to auto-determine arguments from environment"
      )
      if not args.git_sha:
          commit_id = probe_commit_id()
          if not commit_id:
              logger.error(
                  "Could not determine commit id. "
                  "Please set it manually with --git-sha, or ensure you are in a cloned "
                  "mxnet repository directory"
              )
              sys.exit(1)
          args.git_sha = commit_id
  
      if not args.variant:
          variant = probe_mxnet_variant(args.libmxnet)
          if not variant:
              logger.error(
                  "Could not determine mxnet variant. Please set it manually with --variant"
              )
              sys.exit(1)
          args.variant = variant
  
      if not args.os:
          operating_system = probe_operating_system()
          if not operating_system:
              logger.error(
                  "Could not determine operating system. Please set it manually with --os"
              )
              sys.exit(1)
          args.os = operating_system
  
      if not args.bucket:
          artifact_repo_bucket = probe_artifact_repository_bucket()
          if not artifact_repo_bucket:
              logger.error(
                  "Could not determine artifact repository bucket. Please set it manually with --bucket"
              )
              sys.exit(1)
          args.bucket = artifact_repo_bucket
  
      return args
  
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 16 for calling a global function with example usage: probe(args) and returns: args