code: def shell(command, exit_status=0):
      """
      Run command through shell and return exit status if exit status of command run match with given exit status.
  
      Args:
          command: (str) Command string which runs through system shell.
          exit_status: (int) Expected exit status of given command run.
  
      Returns: actual_exit_status
  
      """
      actual_exit_status = os.system(command)
      if actual_exit_status == exit_status:
          return 0
      return actual_exit_status
  
imports: import os
  import shutil
  import sys
label_desc: Use image node_id 1 for calling a global function with example usage: shell(command, exit_status) and returns: actual_exit_status, int