code: def __init__(self, args, world_info_base64):
      self.args = args
      self.validate_args()
      self.user_arguments = self.parse_user_args()
      self.user_script = args.user_script
      self.world_info_base64 = world_info_base64
      self.exports = {}
  
imports: import os
  import sys
  import shutil
  import subprocess
  import warnings
  from shlex import split
  from abc import ABC, abstractmethod
  from ..utils import logger
  from .constants import PDSH_MAX_FAN_OUT, MVAPICH_TMP_HOSTFILE
label_desc: Use image node_id 1 to create a new MultiNodeRunner object from inherited base classes: ABC with example: obj = MultiNodeRunner(args, world_info_base64)