/** Export/import of the Transformers.js browser cache — the offline-bundle
 *  pattern: drain `caches.open('transformers-cache')` into portable entries,
 *  restore them on another machine so model loads make zero network calls.
 *  (Same contract offline-llm-knowledge-system uses for its embed-cache.) */
export interface CacheEntry {
    url: string;
    data: ArrayBuffer;
}
/** The cache name Transformers.js uses — and the one
 *  offline-llm-knowledge-system restores into. */
export declare const CACHE_NAME = "transformers-cache";
/** Drain the Transformers.js cache into portable entries.
 *  Pass a filter to keep only some URLs (default: everything). */
export declare function exportCache(filter?: (url: string) => boolean): Promise<CacheEntry[]>;
/** Restore entries into the Transformers.js cache under their original URLs. */
export declare function importCache(entries: CacheEntry[]): Promise<number>;
/** Manifest form: {file, url} pairs + binary blobs, ready for zipping
 *  (matches offline-llm-knowledge-system's embed-cache/index.json layout). */
export declare function toManifest(entries: CacheEntry[]): {
    index: Array<{
        file: string;
        url: string;
    }>;
    files: Map<string, ArrayBuffer>;
};
export declare function fromManifest(index: Array<{
    file: string;
    url: string;
}>, files: Map<string, ArrayBuffer>): CacheEntry[];