import { Ref } from 'vue';
import { FileRetrieve } from '../../../../../../types/openapi';
import { ContentListSection } from '../../../types/canvas';
/**
 * PIT-6436: this file cache is module-level and keyed only by `file_id`, with no version
 * awareness — once a file is loaded it is never re-fetched. After a deck's file was re-uploaded
 * (new version), the navigator / ContentList kept serving the PREVIOUS version's
 * `content_thumbnails` (the old `versions/<old>/thumbnail-N.webp`, which still exists since
 * versions are immutable). The backend regenerates thumbnails per version correctly — this is
 * purely a stale client cache. Drop it whenever a deck is (re)loaded so its files are re-fetched
 * at the current version. Called from `useCanvas` right after `activeCanvas` is set.
 */
export declare const resetLoadedFiles: () => void;
declare const _default: () => {
    files: {
        loading: Record<string, true>;
        loaded: Record<string, FileRetrieve>;
    };
    watchMissingFiles: (rawItems: Ref<ContentListSection[]>) => import('vue').WatchHandle;
};
export default _default;