code: def test_1(self):
      syllables = ["đây", "đấy", "đó", "đâu"]
      ipas = ["ɗəj³³", "ɗəj²⁴", "ɗɔ²⁴", "ɗəw³³"]
      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 1 for calling the TestVietnameseIPA obj's underlying member method code with example usage: obj.test_1() without return types