import type { EcoComponentConfig, EcoComponentDependencies, EcoPageLayoutEntry, EcoPageLayouts } from '../types/public-types.js';
/**
 * Normalizes `layout` page options to an outer→inner stack of layout entries.
 */
export declare function normalizePageLayouts<E>(layout?: EcoPageLayouts<E>): EcoPageLayoutEntry<E>[];
/**
 * Merges layout components into `dependencies.components` without duplicates.
 */
export declare function mergeLayoutDependencies(dependencies: EcoComponentDependencies | undefined, layoutEntries: EcoPageLayoutEntry[]): EcoComponentDependencies | undefined;
/**
 * Writes normalized layout metadata onto a page `config`.
 */
export declare function applyPageLayoutConfig(pageConfig: EcoComponentConfig, layoutEntries: EcoPageLayoutEntry[]): void;
/**
 * Migrates MDX-exported `config.layout` values onto normalized layout metadata.
 *
 * @remarks
 * `eco.page({ layout })` already normalizes at factory time. MDX modules that
 * export `config.layout` directly still need this import-time migration.
 */
export declare function ensurePageConfigLayouts(config: EcoComponentConfig | undefined): EcoComponentConfig | undefined;