code: def __init__(self):
      app.Canvas.__init__(
          self, size=(512, 512), title="Quad (GL)", keys="interactive"
      )
  
file_path: vispy/examples/gloo/gl/quad_instanced.py
imports: import numpy
  from vispy import app, use
  from vispy.gloo import gl
label_desc: Use image node_id 1 to create a new Canvas object from inherited base classes: app with example: obj = Canvas()