docstr: Sentence segmentation produces correct number of sentences.
docstr_tok: ["Sentence","segmentation","produces","correct","number","of","sentences","."]
code: def test_sentences_count(self):
      """Sentence segmentation produces correct number of sentences."""
  
      self.assertEqual(5, len(self.en_sents))
      self.assertEqual(2, len(self.ar_sents))
      self.assertEqual(1, len(self.ja_sents))
  
file_path: polyglot/polyglot/tokenize/tests/test_base.py
imports: import unittest
  from ..base import SentenceTokenizer, WordTokenizer
  from ...base import Sequence
label_desc: Use image node_id 3 for calling the BaseTest obj's underlying member method code with example usage: obj.test_sentences_count() without return types