code: def __init__(self):
      BaseApplicationBackend.__init__(self)
      self._timers = list()
  
imports: from __future__ import division
  import atexit
  from time import sleep
  import gc
  import os
  from ..base import BaseApplicationBackend, BaseCanvasBackend, BaseTimerBackend
  from ...util import keys, logger
  from ...util.ptime import time
  from ...None import config
label_desc: Use image node_id 1 to create a new ApplicationBackend object from inherited base classes: BaseApplicationBackend with example: obj = ApplicationBackend()