code: def set_up_librispeech(self):
      self._set_up(
          "librispeech",
          "s2t/librispeech",
          [
              "cfg_librispeech.yaml",
              "spm_librispeech_unigram10000.model",
              "spm_librispeech_unigram10000.txt",
              "librispeech_test-other.tsv",
              "librispeech_test-other.zip",
          ],
      )
  
imports: from argparse import Namespace
  import os
  import re
  import unittest
  from pathlib import Path
  from tqdm import tqdm
  from typing import List, Dict, Optional
  import torch
  from fairseq.checkpoint_utils import load_model_ensemble_and_task
  from fairseq.scoring.wer import WerScorer
  from fairseq.scoring.bleu import SacrebleuScorer
  from fairseq import utils
  import zipfile
label_desc: Use image node_id 3 for calling the TestFairseqSpeech obj's underlying member method code with example usage: obj.set_up_librispeech() without return types