code: def stop_task(self, task_id: int):
      thread = self._active_tasks[task_id]
      thread.stop()
      thread.join(1)
  
      if thread.is_alive():
          # don't delete task, wait next circle
          return
  
      del self._active_tasks[task_id]
      self._unlock_task(task_id)
  
file_path: mindsdb/mindsdb/interfaces/tasks/task_monitor.py
imports: import datetime
  import os
  import socket
  import time
  import sqlalchemy
  from mindsdb.interfaces.storage import db
  from mindsdb.utilities import log
  from mindsdb.utilities.config import Config
  from .task_thread import TaskThread
label_desc: Use image node_id 9 for calling the TaskMonitor obj's underlying member method code with example usage: obj.stop_task(task_id) without return types