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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 variance_at(self, singular_value):
 """get the error variance of all three terms at a singluar value Parameters singular_value : int singular value to test Returns ------- dict : dict dictionary of (err var term,prediction_name), standard_deviation pairs """

        results = {}
        results.update(self.first_prediction(singular_value))
        results.update(self.second_prediction(singular_value))
        results.update(self.third_prediction(singular_value))
        return results