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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_request_errors(self):
 """ Override this in each service module to check for errors that are specific to that module. For example, invalid tracking numbers in a Tracking request. """


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