code: def test_uniqueness(self):  # pylint: disable=no-self-use
      assert sorted(phonemes) == sorted(
          list(set(phonemes))
      ), " {} vs {} ".format(len(phonemes), len(set(phonemes)))
  
imports: import unittest
  from TTS.tts.utils.text import phonemes
label_desc: Use image node_id 1 for calling the SymbolsTest obj's underlying member method code with example usage: obj.test_uniqueness() without return types