import { AddItemDataType } from '../types';
/**
 * Checks if this is a built in file that could
 * be ignored when returning results to a client
 *
 * @param pathOrName The name of the path or file
 */
export declare const isMetaFileName: (pathOrName: string) => boolean;
export declare const FileEncryptionKeyLength: number;
export declare const decodeFileEncryptionKey: (key: string) => Uint8Array;
export declare const encodeFileEncryptionKey: (key: Uint8Array) => string;
export declare const generateFileEncryptionKey: () => string;
/**
 * Encrypts the data and returns a readable stream to read the encrypted data
 *
 */
export declare const newEncryptedDataWriter: (data: AddItemDataType, key: Uint8Array) => AsyncIterable<Uint8Array>;
/**
 * Returns an async iterable of decoded bytes.
 *
 */
export declare const newDecryptedDataReader: (data: AsyncIterableIterator<Uint8Array>, key: Uint8Array) => AsyncIterableIterator<Uint8Array>;