import { AACTree } from '../../core/treeStructure';
/**
 * Build a map of button IDs to resolved image entry strings for a page.
 * Returns an empty map when no images are present.
 */
export declare function getPageTokenImageMap(tree: AACTree, pageId: string): Map<string, string>;
/**
 * Collect all referenced image entries across the tree.
 * Currently empty until TouchChat image resolution is implemented.
 */
export declare function getAllowedImageEntries(_tree: AACTree): Set<string>;
/**
 * Read a binary asset from a .ce file.
 * Not implemented yet; provided for API symmetry with other processors.
 */
export declare function openImage(_ceFile: string | Buffer, _entryPath: string): Buffer | null;