code: def _get_sentences(text):
      global _SENTENCE_TOKENIZER
      if not _SENTENCE_TOKENIZER:
          _SENTENCE_TOKENIZER = _load_sentence_tokenizer()
      return list(_SENTENCE_TOKENIZER.tokenize(tf.compat.as_text(text)))
  
imports: import dataclasses
  import functools
  import gzip
  import hashlib
  import heapq
  import io
  import re
  import threading
  from typing import Collection, Iterable, Mapping, Optional, Sequence, Tuple
  from absl import logging
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
  import tensorflow_datasets.public_api
label_desc: Use image node_id 4 for calling a global function with example usage: _get_sentences(text) and returns: list