code: def read_label2answer(cls, label2answer_path_gz, d_vocab):
      lines = cls.readlines(label2answer_path_gz)
  
      d_label_answer = {}
      for line in lines:
          fields = line.rstrip("\n").split("\t")
          if len(fields) != 2:
              raise ValueError(
                  "label2answer file (%s) corrupted. Line (%s)"
                  % (repr(line), label2answer_path_gz)
              )
          else:
              aid, s_wids = fields
              sent = cls.wids2sent(s_wids.split(), d_vocab)
              d_label_answer[aid] = sent
      return d_label_answer
  
imports: from typing import Optional
  import gzip
  import os
  from parlai.core.build_data import DownloadableFile
  from parlai.utils.io import PathManager
  import parlai.core.build_data
label_desc: Use image node_id 5 for calling the ParseInsuranceQA obj's underlying member method code with example usage: obj.read_label2answer(cls, label2answer_path_gz, d_vocab) and returns: d_label_answer