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

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)