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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 send_notification(self, title, message, typ=1, url=None, sender=None):
 """ sends a message to user of this role's private mq exchange """

        self.user.send_notification(title=title, message=message, typ=typ, url=url,
                                    sender=sender)