code: def predict_proba(self, examples):
      return scipy.special.expit(examples * self.weight + self.bias)
  
imports: import random
  import unittest
  import numpy
  import scipy.special
  import dedupe
label_desc: Use image node_id 2 for calling the MockClassifier obj's underlying member method code with example usage: obj.predict_proba(examples) and returns: scipy