Interface HandlerResponsesQueue<Item>

interface HandlerResponsesQueue<Item extends Message> {
    map<PreMapped extends Message>(
        mapping: (item: PreMapped) => WithOrWithoutData<Item>,
    ): MessageQueue<PreMapped>;
    push(item: Item): void;
    push(item: Promise<WithOrWithoutData<undefined | Item>>): void;
    push(item: undefined | Item, data: HandlerCustomData): void;
}