node-groupme/src/websocket/handlers/events/calendar/calendar.event.user.not_going.ts

The only GroupMe API library that isn't a million years old.

import type { APIGroupMessage, CalendarEventUserNotGoingEvent } from 'groupme-api-types'
import type { Client } from '../../../..'

export async function userNotGoing(client: Client, message: APIGroupMessage, event: CalendarEventUserNotGoingEvent) {
    return
}