node-groupme/src/websocket/handlers/events/group/group.avatar_change.ts

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

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

export async function avatarChange(client: Client, message: APIGroupMessage, event: GroupAvatarChangeEvent) {
    return
}