code: def decode(self, y):
      return self.scaler.inverse_transform(y)
  
file_path: lightwood/lightwood/encoder/helpers.py
imports: import torch
  import numpy
  from sklearn.preprocessing import MinMaxScaler, OneHotEncoder, OrdinalEncoder
label_desc: Use image node_id 4 for calling the CatNormalizer obj's underlying member method code with example usage: obj.decode(y) and returns: self