code: def unkify(token: str):
      res = "<unk>"
      for idx in range(len(token)):
          if token[idx].isdigit():
              res = "<unk>-NUM"
  
      return res
  
imports: import builtins
  import json
  import os
  import unicodedata
  from typing import Any, List, Optional, Tuple
label_desc: Use image node_id 16 for calling a global function with example usage: unkify(token) and returns: res