code: def __getitem__(self, index):
      if self.mode == "test":
          return (
              torch.tensor(self.complet_data["src_tokens"][index]),
              torch.tensor(self.complet_data["src_seq_len"][index]),
              torch.tensor(self.complet_data["first"][index]),
              self.complet_data["raw_words"][index],
          )
  
      return (
          torch.tensor(self.complet_data["src_tokens"][index]),
          torch.tensor(self.complet_data["tgt_tokens"][index]),
          torch.tensor(self.complet_data["src_seq_len"][index]),
          torch.tensor(self.complet_data["tgt_seq_len"][index]),
          torch.tensor(self.complet_data["first"][index]),
          self.complet_data["target_span"][index],
      )
  
file_path: DeepKE/src/deepke/name_entity_re/few_shot/module/datasets.py
imports: import torch
  from tqdm import tqdm
  import numpy
  from itertools import chain
  from torch.utils.data import Dataset, DataLoader
  from torch.nn.utils.rnn import pad_sequence
  from transformers import BartTokenizer, BertTokenizer
  import logging
label_desc: Use image node_id 3 for calling the ConllNERDataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: torch,  torch,  torch,  torch,  torch,  self, torch,  torch,  torch,  self