import { ByteArray } from '../../types/lib/index.js';
/**
 * convert a Cairo ByteArray to a JS string
 * @param myByteArray Cairo representation of a LongString
 * @returns a JS string
 * @example
 * ```typescript
 * const myByteArray = {
 *    data: [],
 *    pending_word: '0x414243444546474849',
 *    pending_word_len: 9
 * }
 * const result: String = stringFromByteArray(myByteArray); // ABCDEFGHI
 * ```
 */
export declare function stringFromByteArray(myByteArray: ByteArray): string;
/**
 * convert a JS string to a Cairo ByteArray
 * @param targetString a JS string
 * @returns Cairo representation of a LongString
 * @example
 * ```typescript
 * const myByteArray: ByteArray = byteArrayFromString("ABCDEFGHI");
 * ```
 * Result is :
 * {
 *    data: [],
 *    pending_word: '0x414243444546474849',
 *    pending_word_len: 9
 * }
 */
export declare function byteArrayFromString(targetString: string): ByteArray;