WIll this work?

    public override registerApplicationCommands(registry: Command.Registry) {
        registry.registerChatInputCommand(command => command.setName("ping").setDescription("Pong!"), {
            idHints: [`${this.container.client.id}`],
        });
    }

    public override registerApplicationCommands(registry: Command.Registry) {
        registry.registerChatInputCommand(command => command.setName("ping").setDescription("Pong!"), {
            idHints: [`${this.container.client.id}`],
        });
    }