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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def predict_array(self, arr):
 """ This over-ride is necessary because otherwise the learner method accesses the wrong model when it is called with precompute set to true Args: arr: a numpy array to be used as input to the model for prediction purposes Returns: a numpy array containing the predictions from the model """

        precompute = self.precompute
        self.precompute = False
        pred = super().predict_array(arr)
        self.precompute = precompute
        return pred