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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 delete(self, using=None):
 """ Delete this entry. """

        using = using or router.db_for_write(self.__class__, instance=self)
        connection = connections[using]
        logger.debug("Deleting LDAP entry %s" % self.dn)
        connection.delete_s(self.dn)
        signals.post_delete.send(sender=self.__class__, instance=self)