code: def __getitem__(self, index):
      img, target = None, None
      env = self.env
      with env.begin(write=False) as txn:
          imgbuf = txn.get(self.keys[index])
  
      buf = BytesIO()
      buf.write(imgbuf)
      buf.seek(0)
      img = Image.open(buf).convert("RGB")
      img = np.asarray(img)
      img = mx.nd.array(img)
      # import mxnet
      # mxnet.image.image
      if self.transform is not None:
          img = self.transform(img)
  
      if self.target_transform is not None:
          target = self.target_transform(target)
  
      return img, target
  
imports: from __future__ import absolute_import
  from __future__ import division
  import os
  import numpy
  import mxnet
  from mxnet import gluon
  from PIL import Image
  import sys
label_desc: Use image node_id 2 for calling the LSUNClass obj's underlying member method code with example usage: obj.__getitem__(index) and returns: img,  target