/**
 * Converts a Latin-1 string to an ArrayBuffer.
 * @param {string} str Latin-1 string.
 * @returns {ArrayBuffer} ArrayBuffer.
 */
export function latin1ToBuf(str: string): ArrayBuffer;
/**
 * Converts an ArrayBuffer to a Latin-1 string.
 * @param {ArrayBuffer} buf ArrayBuffer.
 * @returns {string} Latin-1 string.
 */
export function latin1FromBuf(buf: ArrayBuffer): string;