/**
 * Имитация IntersectionObserver.
 */
export declare class IntersectionObserverMock implements IntersectionObserver {
    /**
     * Создает новый реестр экземпляров IntersectionObserverMock.
     * @return Реестр.
     */
    static createRegistry(): IntersectionObserverRegistry;
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/root).
     */
    readonly root: Element | Document | null;
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/rootMargin).
     */
    readonly rootMargin: string;
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/scrollMargin).
     */
    readonly scrollMargin: string;
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/thresholds).
     */
    readonly thresholds: ReadonlyArray<number>;
    protected readonly callback: IntersectionObserverCallback;
    protected readonly options: IntersectionObserverInit | undefined;
    /**
     * @inheritdoc
     */
    constructor(callback: IntersectionObserverCallback, options?: IntersectionObserverInit);
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/disconnect).
     * @inheritdoc
     */
    disconnect(): void;
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/observe).
     * @inheritdoc
     */
    observe(target: Element): void;
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/takeRecords).
     * @inheritdoc
     */
    takeRecords(): IntersectionObserverEntry[];
    /**
     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/IntersectionObserver/unobserve).
     * @inheritdoc
     */
    unobserve(target: Element): void;
    /**
     * Имитирует изменение состояния наблюдаемого элемента.
     * @param entry Данные состояния.
     */
    simulateEntryChange({ target, isIntersecting, intersectionRatio, }: Pick<IntersectionObserverEntry, 'intersectionRatio' | 'isIntersecting' | 'target'>): void;
}
/**
 * Реестр экземпляров IntersectionObserverMock.
 */
export declare class IntersectionObserverRegistry {
    protected readonly items: Set<IntersectionObserverMock>;
    /**
     * @inheritdoc
     */
    constructor();
    /**
     * Создает, регистрирует и возвращает новый экземпляр IntersectionObserverMock.
     * @param params Аргументы IntersectionObserverMock.
     * @return Экземпляр IntersectionObserverMock.
     */
    getObserver(...params: ConstructorParameters<typeof IntersectionObserverMock>): IntersectionObserverMock;
    /**
     * Имитирует изменение состояния наблюдаемого элемента на всех экземплярах в реестре.
     * @param entry Данные состояния.
     */
    simulateEntryChange(entry: Pick<IntersectionObserverEntry, 'intersectionRatio' | 'isIntersecting' | 'target'>): void;
}