code: def base_define_graph(self, inputs, labels):
      images_gpu = self.decode_gpu(inputs)
      images_host = self.decode_host(inputs)
      return images_gpu, images_host, labels
  
imports: import argparse
  import glob
  import nvidia.dali.ops
  import nvidia.dali.tfrecord
  import nvidia.dali.types
  import os
  from nvidia.dali.pipeline import Pipeline
  from test_utils import get_dali_extra_path
label_desc: Use image node_id 2 for calling the CommonPipeline obj's underlying member method code with example usage: obj.base_define_graph(inputs, labels) and returns: images_gpu,  images_host,  labels