code: def __init__(self, vispy_timer):
      BaseTimerBackend.__init__(self, vispy_timer)
      vispy_timer._app._backend._add_timer(self)
      self._vispy_stop()
  
imports: from __future__ import division
  import atexit
  from time import sleep
  from ..base import BaseApplicationBackend, BaseCanvasBackend, BaseTimerBackend
  from ...util.ptime import time
  from ...None import config
label_desc: Use image node_id 1 to create a new TimerBackend object from inherited base classes: BaseTimerBackend with example: obj = TimerBackend(vispy_timer)