Rocket.Chat/apps/meteor/ee/server/models/LivechatUnit.ts

import { registerModel } from '@rocket.chat/models';

import { db } from '../../../server/database/utils';
import { LivechatUnitRaw } from './raw/LivechatUnit';

// @ts-expect-error - Overriding base types :)
registerModel('ILivechatUnitModel', new LivechatUnitRaw(db));