imports: import os
  import unicodedata
  import pytest
  from nemo.collections.tts.g2p.models.i18n_ipa import IpaG2p
  from nemo.collections.tts.g2p.utils import GRAPHEME_CASE_LOWER, GRAPHEME_CASE_MIXED, GRAPHEME_CASE_UPPER
label_desc: Use image node_id 2 for calling the TestIpaG2p obj's underlying member method code with example usage: obj.test_normalize_dict_with_phonemes() without return types