code: def test_init_2(self):
      vectors_cache_dir = ".cache"
      if os.path.exists(vectors_cache_dir):
          shutil.rmtree(vectors_cache_dir)
  
      pathdir = os.path.abspath(
          os.path.join(test_dir_path, "test_datasets")
      )
      filename = "fasttext_sample_not_exist.vec.zip"
      url_base = urljoin(
          "file:", pathname2url(os.path.join(pathdir, filename))
      )
      mftb = FastTextBinary(
          filename, url_base=url_base, cache=vectors_cache_dir
      )
  
      if os.path.exists(vectors_cache_dir):
          shutil.rmtree(vectors_cache_dir)
  
imports: import os
  import shutil
  import unittest
  from collections import Counter
  from test import test_dir_path
  from nose.tools import *
  import torch
  from deepmatcher.data.dataset import MatchingDataset
  from deepmatcher.data.field import FastText, FastTextBinary, MatchingField, MatchingVocab, reset_vector_cache
  from torchtext.vocab import Vectors
  from urllib.parse import urljoin
  from urllib.request import pathname2url
label_desc: Use image node_id 2 for calling the ClassFastTextBinaryTestCases obj's underlying member method code with example usage: obj.test_init_2() without return types