code: def probe_commit_id() -> str:
      """
      Probes the system in an attempt to ascertain the mxnet commit id
      :return: The commit id, or None if not found
      """
      logger.debug("Probing for commit id")
      commit_id = os.environ.get("MXNET_SHA")
      if not commit_id:
          logger.debug(
              "MXNET_SHA environment variable not set. Trying GIT_COMMIT"
          )
          commit_id = os.environ.get("GIT_COMMIT")
      if not commit_id:
          logger.debug(
              "GIT_COMMIT environment variable not set. Trying git command"
          )
          commit_id = get_commit_id_from_cmd()
      if not commit_id:
          logger.debug("Could not determine git commit id")
      else:
          logger.debug("Commit id is: {}".format(commit_id))
      return commit_id
  
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 6 for calling a global function with example usage: probe_commit_id() and returns: commit_id