export declare class IntersectionObserverState {
    intersectionRatio: number;
    observer?: IntersectionObserver;
    constructor();
    dispose: () => void;
    init({ root, target, rootMargin, }: {
        target?: Element | null;
        root?: Element | Document | null;
        rootMargin?: string;
    }): (() => void) | undefined;
}
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