class_docstr: Pyglet backend for Canvas abstract class.
class_docstr_tok: ["Pyglet","backend","for","Canvas","abstract","class","."]
code: def on_mouse_drag(self, x, y, dx, dy, button, modifiers):
      self.on_mouse_motion(x, y, dx, dy)
  
imports: from __future__ import division
  from packaging.version import Version
  from time import sleep
  from ..base import BaseApplicationBackend, BaseCanvasBackend, BaseTimerBackend
  from ...util import keys
  from ...util.ptime import time
  from ...None import config
label_desc: Use image node_id 26 for calling the CanvasBackend obj's underlying member method code with example usage: obj.on_mouse_drag(x, y, dx, dy, button, modifiers) without return types