code: def __init__(self, *args):
      self._length = len(args[1])
      self._data = []
      for _, data in enumerate(args):
          self._data.append(data)
  
imports: import os
  import logging
  import sys
  import re
  import mxnet
  from common import TemporaryDirectory
  from mxnet import np
  from mxnet.gluon import nn, loss
  from mxnet.gluon.contrib.estimator import estimator, event_handler
  from mxnet.gluon.contrib.estimator.event_handler import LoggingHandler
  from mxnet.gluon.contrib.estimator.event_handler import ValidationHandler
  from mxnet.gluon.contrib.estimator import EpochEnd
  from mxnet.gluon.data.dataset import Dataset
label_desc: Use image node_id 1 to create a new AxisArrayDataset object from inherited base classes: Dataset with example: obj = AxisArrayDataset()