code: def japanese_convert_alpha_symbols_to_words(text: str) -> str:
      return "".join(
          [_ALPHASYMBOL_YOMI.get(ch, ch) for ch in text.lower()]
      )
  
file_path: TTS/TTS/tts/utils/text/japanese/phonemizer.py
imports: import re
  import unicodedata
  from num2words import num2words
label_desc: Use image node_id 6 for calling a global function with example usage: japanese_convert_alpha_symbols_to_words(text) and returns: str