/**
 * Original work Copyright (c) 2018 PoC-Consortium
 * Modified work Copyright (c) 2019 Burst Apps Team
 */
/**
 * Converts a string into byte array
 * Inverse function {@link convertByteArrayToString}
 * @param str The string  to be converted
 * @return {number[]} A byte array representing the string input
 *
 * @category conversion
 */
export declare const convertStringToByteArray: (str: string) => Uint8Array;