code: def _arpabet_to_sequence(text):
      """Prepend "@" to ensure uniqueness"""
      return _symbols_to_sequence(["@" + s for s in text.split()])
  
file_path: speechbrain/speechbrain/utils/text_to_sequence.py
imports: import re
  import logging
label_desc: Use image node_id 13 for calling a global function with example usage: _arpabet_to_sequence(text) and returns: _symbols_to_sequence