node-groupme/src/managers/FormerMemberManager.ts

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

import type { BaseGroup, Client, Collection } from '..'
import { BaseManager, FormerMember } from '..'

interface FormerMemberManagerInterface {
    fetch(): Promise<Collection<string, FormerMember>>
}

export default class FormerMemberManager
    extends BaseManager<FormerMember, typeof FormerMember>
    implements FormerMemberManagerInterface
{
    group: BaseGroup
    constructor(client: Client, group: BaseGroup) {
        super(client, FormerMember)
        this.group = group
    }
    fetch(): Promise<Collection<string, FormerMember>>
    fetch(id: string): Promise<FormerMember>
    public async fetch(id?: string): Promise<Collection<string, FormerMember> | FormerMember> {
        throw new Error('Method not implemented.')
    }
}