def get_event(self, event_id):
        """Gets details about a maintenance event

        :param int event_id: Notification_Occurrence_Event ID
        :return: Notification_Occurrence_Event
        """
        mask = """mask[
            acknowledgedFlag,
            attachments,
            impactedResources,
            statusCode,
            updates,
            notificationOccurrenceEventType]
        """
        return self.client.call('Notification_Occurrence_Event', 'getObject', id=event_id, mask=mask)