/**
 * The `view-transition-class` the shipped CSS targets. Add it as a class name
 * to the source element and the detail, next to their shared
 * `view-transition-name`. The kit sheet maps the class to the property.
 */
export declare const ZOOM_DRILLDOWN_TRANSITION_CLASS: "ds-zoom-drilldown";
export interface UseZoomDrilldownOptions {
    /** Resolver for the scroll container whose scrollTop should be preserved
     *  across the transition. Defaults to the nearest `<main>` element in
     *  the document (or the Radix ScrollArea viewport around it). The window
     *  scroll position is always tracked alongside. */
    getScrollContainer?: () => HTMLElement | null;
}
export interface UseZoomDrilldownReturn<Id extends string> {
    /** The open drill-down target, or `null` while the source view shows. */
    readonly selected: Id | null;
    /** Zoom into `id`: saves the scroll position and enters at the top. */
    readonly open: (id: Id) => void;
    /** Zoom back out and restore the saved scroll position. */
    readonly close: () => void;
}
export declare function useZoomDrilldown<Id extends string>(options?: UseZoomDrilldownOptions): UseZoomDrilldownReturn<Id>;
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