code: def shift_scale(batch, shift, scale):
      for i in range(len(batch)):
          batch[i] = batch[i] * scale + shift
  
imports: from nvidia.dali.pipeline import Pipeline
  from nvidia.dali import backend
  import nvidia.dali.ops
  import numpy
  from test_utils import dali_type
  from nvidia.dali import fn, pipeline_def, types
  from nose2.tools import params
label_desc: Use image node_id 13 for calling a global function with example usage: shift_scale(batch, shift, scale) without return types