code: def exec_command(self, command, command_async=None, *args, **kwargs):
      return self.client.exec_command(command, *args, **kwargs)
  
imports: import json
  import logging
  import os
  import sys
  import time
  import threading
  import paramiko
  from .CPUResourceManager import CPUResourceManager
  from ...utils import check_missing_key, load_default_env, parse_result, DEFAULT_AUPTIMIZER_PATH, block_until_ready
  from ...utils import open_sftp_with_timeout, parse_one_line
  from ..Job import Job
label_desc: Use image node_id 2 for calling the Remote obj's underlying member method code with example usage: obj.exec_command(command, command_async) and returns: self