import type { UrlString } from './types.js';
export declare const OPFS_META_FOOTER_LENGTH = 4;
export declare const MAX_META_JSON_BYTES = 3000;
export declare const KILOBYTE = 1024;
export declare const MEGABYTE: number;
export declare const GIGABYTE: number;
export interface OpfsMetadata {
    url: UrlString;
    size: number;
    folderName?: string;
    type?: string;
    etag?: string;
    lastModified?: string;
    lastAccessed?: number;
    evictable?: boolean;
}
export declare function readMetadataFromFileFooter(file: File): Promise<{
    metadata: OpfsMetadata | undefined;
    bodySize: number;
}>;