code: def __init__(self, root, phase, transform):
      self.dir = os.path.join(root, phase)
      self.A_paths = [
          os.path.join(self.dir + "A", f)
          for f in os.listdir(self.dir + "A")
      ]
      self.B_paths = [
          os.path.join(self.dir + "B", f)
          for f in os.listdir(self.dir + "B")
      ]
      self.A_paths = sorted(self.A_paths)
      self.B_paths = sorted(self.B_paths)
      self.A_size = len(self.A_paths)
      self.B_size = len(self.B_paths)
      self.transform = transform
  
imports: import argparse
  import random
  from mxnet import gluon, image, autograd
  from mxnet.gluon.data.vision import transforms
  from mxnet.base import numeric_types
  import gluoncv
  from gluoncv import utils
  from mxnet.gluon.data import DataLoader
  from mxnet.gluon import nn
  import mxnet.ndarray
  import mxnet
  import os
  import numpy
  from mxboard import SummaryWriter
label_desc: Use image node_id 1 to create a new DataSet object from inherited base classes: gluon.data with example: obj = DataSet(root, phase, transform)