/**
 * Generic item registry hook using Map for unified item management across components
 *
 * When every registered item carries a DOM node as its data, the indexed
 * lookups (`getItemIds`, `getItemAtIndex`, `getItemIndex`) follow document
 * order; otherwise they follow registration order.
 *
 * @template T - Type of data stored with each item (use void for simple ID-only tracking)
 */
export declare function useItemRegistry<T = void>(): {
    items: Map<string, T>;
    registerItem: (id: string, data?: T) => void;
    unregisterItem: (id: string) => void;
    getItemIds: () => string[];
    getItemAtIndex: (index: number) => string | undefined;
    getItemIndex: (id: string) => number;
    count: number;
};
/**
 * Return type for useItemRegistry hook
 */
export type ItemRegistry<T = void> = ReturnType<typeof useItemRegistry<T>>;