code: def _parse_text(tokenizer, text):
      tokens = tokenizer.encode(text)
      chars = tokenizer.decode(tokens)
      chars = chars.replace("|", "")
      return chars, tokens
  
imports: import pytest
  from nemo.collections.common.tokenizers.text_to_speech.tts_tokenizers import EnglishCharsTokenizer, FrenchCharsTokenizer, GermanCharsTokenizer, IPATokenizer, ItalianCharsTokenizer, SpanishCharsTokenizer
  from nemo.collections.tts.g2p.models.i18n_ipa import IpaG2p
label_desc: Use image node_id 1 for calling the TestTTSTokenizers obj's underlying member method code with example usage: obj._parse_text(tokenizer, text) and returns: chars,  tokens