code: def blend_edges(image, blend_factor):
      edges = fn.laplacian(image, window_size=5, dtype=types.UINT8)
      return fn.cast_like(
          (1.0 - blend_factor) * image + blend_factor * edges, image
      )
  
file_path: DALI/dali/test/python/auto_aug/test_select.py
imports: import os
  import numpy
  from nose2.tools import params
  from nvidia.dali import fn, pipeline_def, types
  from nvidia.dali.auto_aug.core import augmentation, select
  from test_utils import get_dali_extra_path, check_batch
label_desc: Use image node_id 3 for calling a global function with example usage: blend_edges(image, blend_factor) and returns: fn