code: def _vispy_set_title(self, title):
      pass
  
imports: import asyncio
  from ..base import BaseApplicationBackend, BaseCanvasBackend, BaseTimerBackend
  from ...app import Timer
  from ...util import keys
  from ._offscreen_util import OffscreenContext, FrameBufferHelper
label_desc: Use image node_id 9 for calling the CanvasBackend obj's underlying member method code with example usage: obj._vispy_set_title(title) without return types