code: def test_1(self):
      word = Word("chó")
      self.assertTrue(word.is_vietnamese)
  
imports: from unittest import TestCase
  from examples.vietnamese_ipa.process_viwiktionary import Word, split_vietnamese_syllable
label_desc: Use image node_id 1 for calling the TestModel obj's underlying member method code with example usage: obj.test_1() without return types