code: def _get_unannotated_tsv_data(datapath, domain):
      file_name = os.path.join(
          datapath,
          RAW_DATA_PREFIX,
          RAW_DATA_UNANNOTATED_DATA_PATH,
          domain + ".tsv",
      )
      return csv.reader(open(file_name, "r"), delimiter=",")
  
imports: import parlai.core.build_data
  from parlai.core.build_data import DownloadableFile
  import csv
  from itertools import islice
  from pathlib import Path
  import os
  import json
  import re
  import tqdm
label_desc: Use image node_id 3 for calling a global function with example usage: _get_unannotated_tsv_data(datapath, domain) and returns: csv