code: def test_before_after_hooks(self):
      model = tests.mocks.models_keras.SaimeseTwinsClassifier()
      model.fit(epochs=1, test=True, score=True)
      model.predict(model.pipeline.test_data)
      self.assertTrue(model.called_before_fit)
      self.assertTrue(model.called_after_fit)
      self.assertTrue(model.called_before_predict)
      self.assertTrue(model.called_after_predict)
      self.assertTrue(model.called_before_evaluate)
      self.assertTrue(model.called_after_evaluate)
      self.assertTrue(model.called_before_score)
      self.assertTrue(model.called_after_score)
  
imports: import unittest
  import tests.mocks.models_keras
  import scipy.stats
  import numpy
label_desc: Use image node_id 2 for calling the TestKeras obj's underlying member method code with example usage: obj.test_before_after_hooks() without return types