type ObserverCallback = (isIntersecting: boolean) => void;
export type SharedObserver = {
    observe: (el: HTMLElement, callback: ObserverCallback) => void;
    unobserve: (el: HTMLElement) => void;
};
export declare const SharedIntersectionContext: import("react").Context<SharedObserver | null>;
export declare const useSharedObserver: (root: HTMLElement | null) => SharedObserver | null;
export declare const useSharedIntersection: () => SharedObserver | null;
export {};