code: def cupy_kernel_mix_channels(in1, in2):
      return [
          mix_channels_kernel(in1[i], in2[i]) for i in range(BATCH_SIZE)
      ], in2
  
imports: import numpy
  import nvidia.dali.ops
  import nvidia.dali.types
  import os
  import random
  from functools import partial
  from nvidia.dali.pipeline import Pipeline
  from nvidia.dali import fn, pipeline_def
  from nvidia.dali.python_function_plugin import current_dali_stream
label_desc: Use image node_id 29 for calling a global function with example usage: cupy_kernel_mix_channels(in1, in2) and returns: unknown,  in2