class_docstr: A single training/test example for the Squad dataset.
class_docstr_tok: ["A","single","training\/test","example","for","the","Squad","dataset","."]
code: def __str__(self):
      return self.__repr__()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import argparse
  import collections
  import logging
  import json
  import math
  import os
  import random
  import pickle
  from tqdm import tqdm, trange
  from utils import get_argument_parser, get_summary_writer, write_summary_events, is_time_to_exit, check_early_exit_warning
  import numpy
  import torch
  from torch.utils.data import TensorDataset, DataLoader, RandomSampler, SequentialSampler
  from torch.utils.data.distributed import DistributedSampler
  from pytorch_pretrained_bert.tokenization import whitespace_tokenize, BasicTokenizer, BertTokenizer
  from pytorch_pretrained_bert.optimization import BertAdam
  from pytorch_pretrained_bert.file_utils import PYTORCH_PRETRAINED_BERT_CACHE
  from apex import amp
  from turing.nvidia_modeling import BertForQuestionAnswering, BertConfig
  from apex.multi_tensor_apply import multi_tensor_applier
label_desc: Use image node_id 2 for calling the SquadExample obj's underlying member method code with example usage: obj.__str__() and returns: self