docstr: Return this item's transform object.
code: def transform(self):
      """Return this item's transform object."""
      return self.__transform
  
imports: from OpenGL.GL import *
  from OpenGL import GL
  from ..None import Transform3D
  from ..Qt import QtCore
label_desc: Use image node_id 14 for calling the GLGraphicsItem obj's underlying member method code with example usage: obj.transform() and returns: self