code: def setUp(self):
      self.phonemes = IPAPhonemes()
      self.base_vocab = BaseVocabulary(
          vocab=self.phonemes._vocab,
          pad=self.phonemes.pad,
          blank=self.phonemes.blank,
          bos=self.phonemes.bos,
          eos=self.phonemes.eos,
      )
      self.empty_vocab = BaseVocabulary({})
  
file_path: TTS/tests/text_tests/test_characters.py
imports: import unittest
  from TTS.tts.utils.text.characters import BaseCharacters, BaseVocabulary, Graphemes, IPAPhonemes
label_desc: Use image node_id 1 for calling the BaseVocabularyTest obj's underlying member method code with example usage: obj.setUp() without return types