code: def test_get_vocab(self):
      vocab_keys = list(self.get_tokenizer().get_vocab().keys())
  
      self.assertEqual(vocab_keys[0], "<blank>")
      self.assertEqual(vocab_keys[1], "<unk>")
      self.assertEqual(vocab_keys[-4], "UH0")
      self.assertEqual(vocab_keys[-2], "..")
      self.assertEqual(vocab_keys[-1], "<sos/eos>")
      self.assertEqual(len(vocab_keys), 78)
  
imports: import unittest
  from transformers.models.fastspeech2_conformer import FastSpeech2ConformerTokenizer
  from transformers.testing_utils import require_g2p_en, slow
  from ...test_tokenization_common import TokenizerTesterMixin
label_desc: Use image node_id 5 for calling the FastSpeech2ConformerTokenizerTest obj's underlying member method code with example usage: obj.test_get_vocab() without return types