/**
 * Custom hook to preload all pages for a product.
 * This eliminates sequential server calls when navigating to /page/<id>
 * by fetching all page metadata in a single API call on mount.
 * After fetching metadata, it preloads the actual widget modules in the background.
 *
 * @param {Function} getWidget - Function to load widget modules
 * @returns {Object} - { pages, loading, error, refetch, preloadingWidgets }
 */
export declare const usePreloadPages: () => Object;
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