code: def __getitem__(self, index):
      if index > self.l:
          raise IndexError()
      return (index, np.zeros(2))
  
imports: import numpy
  from assertpy import assert_that
  from numpy.random import shuffle
  from torch.utils.data import Dataset
  import logging
  import os
  from assertpy import assert_that
  from tempfile import NamedTemporaryFile
  from multiprocessing import cpu_count
  from ffcv.writer import DatasetWriter
  from ffcv.reader import Reader
  from ffcv.fields import IntField, FloatField, BytesField
label_desc: Use image node_id 3 for calling the DummyDatasetWithData obj's underlying member method code with example usage: obj.__getitem__(index) and returns: index,  np