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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 get_domain_event(self, originator_id, position):
 """ Gets a domain event from the sequence identified by `originator_id` at position `eq`. :param originator_id: ID of a sequence of events :param position: get item at this position :return: domain event """


        sequenced_item = self.record_manager.get_item(
            sequence_id=originator_id,
            position=position,
        )
        return self.mapper.event_from_item(sequenced_item)