code: def setUp(self):
      vocab_tokens = [
          "[UNK]",
          "[CLS]",
          "[SEP]",
          "want",
          "##want",
          "##ed",
          "wa",
          "un",
          "runn",
          "##ing",
          ",",
          "low",
          "lowest",
      ]
  
      self.tmp_dir = tempfile.TemporaryDirectory()
      self.vocab_file = os.path.join(self.tmp_dir.name, "vocab.txt")
      with open(self.vocab_file, "w", encoding="utf-8") as vocab_writer:
          vocab_writer.write("".join([x + "\n" for x in vocab_tokens]))
  
file_path: texar/tests/data/tokenizers/bert_tokenizer_test.py
imports: import os
  import pickle
  import tempfile
  import tensorflow
  from texar.tf.data.tokenizers.bert_tokenizer import BERTTokenizer
  from texar.tf.utils.test import pretrained_test
label_desc: Use image node_id 1 for calling the BERTTokenizerTest obj's underlying member method code with example usage: obj.setUp() without return types