class_docstr: Mock ActiveLearner for testing.
code: def __init__(
      self,
      predictor=None,
      query_strategy=None,
      predict_proba_return=None,
      calculate_utility_return=None,
      predict_return=None,
      score_return=None,
      _X_initial=None,
      _y_initial=None,
  ):
      self.estimator = predictor
      self.query_strategy = query_strategy
  
      self.predict_proba_return = predict_proba_return
      self.calculate_utility_return = calculate_utility_return
      self.predict_return = predict_return
      self.score_return = score_return
  
imports: from sklearn.exceptions import NotFittedError
label_desc: Use image node_id 1 to create a new MockActiveLearner object  with example: obj = MockActiveLearner(predictor, query_strategy, predict_proba_return, calculate_utility_return, predict_return, score_return, _X_initial, _y_initial)