code: def test_2(self):
      syllables = ["ao", "au"]
      ipas = ["ʔaːw³³", "ʔaw³³"]
      for i, s in enumerate(syllables):
          syllable = Syllable(s)
          actual = syllable.generate_ipa()
          expected = ipas[i]
          self.assertEqual(expected, actual)
  
file_path: underthesea/tests/utils/test_vietnamese_ipa.py
imports: from os.path import join, dirname
  from unittest import TestCase
  from underthesea.utils.vietnamese_ipa import Syllable
label_desc: Use image node_id 2 for calling the TestVietnameseIPA obj's underlying member method code with example usage: obj.test_2() without return types