code: def __getitem__(self, i):
      if self.data_creator.multilingual:
          return self.getitem_multilingual(i)
      else:
          return self.getitem_monolingual(i)
  
imports: from tqdm import tqdm
  from typing import Tuple
  from random import shuffle
  import pickle
  import random
  import numpy
  from pathlib import Path
  from pytorch_pretrained_bert.tokenization import BertTokenizer
label_desc: Use image node_id 4 for calling the NumpyByteInstances obj's underlying member method code with example usage: obj.__getitem__(i) and returns: self, self