code: def _symbols_to_sequence(syms):
      return [_symbol_to_id[s] for s in syms if _should_keep_symbol(s)]
  
file_path: TTS/TTS/tts/utils/text/__init__.py
imports: import re
  from packaging import version
  import phonemizer
  from phonemizer.phonemize import phonemize
  from TTS.tts.utils.text import cleaners
  from TTS.tts.utils.text.symbols import make_symbols, symbols, phonemes, _phoneme_punctuations, _bos, _eos
label_desc: Use image node_id 9 for calling a global function with example usage: _symbols_to_sequence(syms) and returns: unknown