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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 reject_record(self, record):
 """Reject a record for inclusion in the community. :param record: Record object. """

        with db.session.begin_nested():
            req = InclusionRequest.get(self.id, record.id)
            if req is None:
                raise InclusionRequestMissingError(community=self,
                                                   record=record)
            req.delete()