code: def decode(self, col: str, ids: List[int]) -> str:
      if col in self.column_codes:
          return self.column_codes[col].decode(ids)
      else:
          raise ValueError("cannot decode")
  
imports: import math
  from typing import Dict, List, Tuple
  import numpy
  from numpy import ndarray
  from sklearn.preprocessing import PowerTransformer, QuantileTransformer, RobustScaler
  from nemo.utils import logging
label_desc: Use image node_id 5 for calling the ColumnCodes obj's underlying member method code with example usage: obj.decode(col, ids) and returns: self