code: def _vispy_close(self):
      # ipywidget.Widget.close()  ->  closes the comm and removes all views
      self.close()
  
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 15 for calling the CanvasBackend obj's underlying member method code with example usage: obj._vispy_close() without return types