code: def predict(score):
      return score
  
imports: import numpy
  import pandas
  import torch
  from fate.arch.dataframe import DataFrame
  from scipy.special import expit
  from fate.ml.utils.predict_tools import BINARY, MULTI, REGRESSION
label_desc: Use image node_id 2 for calling the L2Loss obj's underlying member method code with example usage: obj.predict(score) and returns: score