ServicesOptions

rest?: ApiHandler;

cache?: {    adapter?: Adapter;    disabledCache?: boolean | DisabledCache | ((cacheType: keyof DisabledCache) => boolean);};

langs?: {    default?: string;    preferGuildLocale?: boolean;    aliases?: Record<string, LocaleString[]>;};

middlewares?: ClientMiddlewares;

handleCommand?: new (client: UsingClient) => HandleCommand;

Custom command handler subclass constructor. Pass the class itself, not an instance.