code: def normalize(word):
      return chuan_hoa_dau_tu_tieng_viet(word)
  
file_path: underthesea/examples/text_normalize/tools/nvh.py
imports: import regex
label_desc: Use image node_id 8 for calling a global function with example usage: normalize(word) and returns: chuan_hoa_dau_tu_tieng_viet