code: def mxnet_slice(in1, in2):
      return [t[:, :, 1] for t in in1], [t[:, :, 2] for t in 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 18 for calling a global function with example usage: mxnet_slice(in1, in2) and returns: unknown,  unknown