code: def get_train_examples(self):
      raise NotImplementedError()
  
imports: import numpy
  import torch
  from dataclasses import dataclass
  from typing import List
  from jiant.tasks.core import BaseExample, BaseTokenizedExample, BaseDataRow, BatchMixin, Task, TaskTypes
  from jiant.tasks.lib.templates.shared import double_sentence_featurize, labels_to_bimap
  from jiant.utils.python.io import read_jsonl
label_desc: Use image node_id 2 for calling the XnliTask obj's underlying member method code with example usage: obj.get_train_examples() without return types