code: def test_label_and_text(self):
      text = ["O O"]
      maxlen = 2
      text_tokenize_t = tokenize_sentence(
          text, maxlen, self.vocab_text_filepath
      )
      label = ["B B"]
      maxlen = 2
      label_tokenize_t = tokenize_label(
          label, maxlen, self.vocab_label_filepath, -1
      )
  
      with self.cached_session(use_gpu=False, force_gpu=False) as sess:
          res = sess.run([text_tokenize_t, label_tokenize_t])
          logging.debug(res)
          self.assertAllEqual(res[0], [[3, 3]])
          self.assertAllEqual(res[1], [[0, 0]])
  
imports: import os
  from pathlib import Path
  import delta.compat
  from absl import logging
  import tempfile
  import numpy
  from delta import PACKAGE_ROOT_DIR
  from delta import utils
  from delta.data.preprocess.text_ops import clean_english_str_tf
  from delta.data.preprocess.text_ops import char_cut_tf
  from delta.data.preprocess.text_ops import tokenize_label
  from delta.data.preprocess.text_ops import tokenize_sentence
  from delta.data.preprocess.text_ops import process_one_label_dataset
  from delta.data.preprocess.text_ops import process_multi_label_dataset
label_desc: Use image node_id 3 for calling the TextOpsTest obj's underlying member method code with example usage: obj.test_label_and_text() without return types