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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 __check_response_for_fedex_error(self):
 """ This checks the response for general Fedex errors that aren't related to any one WSDL. """


        if self.response.HighestSeverity == "FAILURE":
            for notification in self.response.Notifications:
                if notification.Severity == "FAILURE":
                    raise FedexFailure(notification.Code,
                                       notification.Message)