class_docstr: Transform having no effect on coordinates (identity transform).
code: def __rmul__(self, tr):
      return tr
  
imports: from __future__ import division
  import numpy
  from ...util import transforms
  from ...geometry import Rect
  from ._util import arg_to_vec4, as_vec4
  from .base_transform import BaseTransform
label_desc: Use image node_id 4 for calling the NullTransform obj's underlying member method code with example usage: obj.__rmul__(tr) and returns: tr