interface ScrollSpySection {
    id: string;
    title?: string;
    level?: number;
}
interface UseScrollSpyReturn {
    activeSection: string;
    handleSectionClick: (sectionId: string) => void;
}
/**
 * Shared scroll spy hook for tracking active section based on scroll position.
 * Used by DocViewer for sticky section navigation.
 */
export declare function useScrollSpy(sections: ScrollSpySection[] | undefined): UseScrollSpyReturn;
export {};
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