code: def loop_is_running(cls):
      return cls.loop.asyncio_loop.is_running()
  
imports: import queue
  import random
  import threading
  from functools import partial
  import tornado.ioloop
  from perspective import PerspectiveError, PerspectiveManager, Table
  from pytest import raises
label_desc: Use image node_id 3 for calling the TestAsync obj's underlying member method code with example usage: obj.loop_is_running(cls) and returns: cls