code: def __getitem__(self, charCode):
      try:
          return self.codes[charCode]
      except KeyError:
          return "????"
  
file_path: catboost/contrib/python/fonttools/fontTools/unicode.py
label_desc: Use image node_id 2 for calling the _UnicodeCustom obj's underlying member method code with example usage: obj.__getitem__(charCode) and returns: self, str