code: def __call__(self, dataset, interaction):
      pass
  
imports: import math
  import numpy
  import random
  import torch
  from copy import deepcopy
  from recbole.data.interaction import Interaction, cat_interactions
label_desc: Use image node_id 2 for calling the UserDefinedTransform obj's underlying member method code with example usage: obj.__call__(dataset, interaction) without return types