code: def _run_test(self, opt):
      with testing_utils.tempdir() as tmpdir:
          dict_file = os.path.join(tmpdir, "dict")
          pp = build_dict.setup_args()
          pp.set_defaults(**opt)
          pp.set_defaults(task="babi")
          popt = pp.parse_args([])
          popt["dict_file"] = dict_file
          for k, v in opt.items():
              popt[k] = v
  
imports: from parlai.core.build_data import modelzoo_path
  from parlai.core.dict import find_ngrams
  from parlai.core.params import ParlaiParser
  from parlai.core.dict import DictionaryAgent, TokenizationMode
  from parlai.core.opt import Opt
  import parlai.scripts.build_dict
  from parlai.utils.io import PathManager
  import parlai.utils.testing
  import os
  import shutil
  import unittest
  import pytest
label_desc: Use image node_id 1 for calling the TestBuildDict obj's underlying member method code with example usage: obj._run_test(opt) without return types