code: def update_stopped(self):
      if self.stopped:
          return
  
      file = self.path / "stopped"
      if not file.exists():
          return
  
      self.stopped = True
      self.save()
  
imports: import io
  import sys
  from pathlib import Path
  from typing import Dict, Optional, List, Iterable
  import yaml
  from labml import logger
  from labml.logger import Text
  from labml_remote.configs import Configs
  from labml_remote.execute import UIMode
  from labml_remote.server import Server, SERVERS
label_desc: Use image node_id 3 for calling the Job obj's underlying member method code with example usage: obj.update_stopped() without return types