/**

* @fileoverview UTF8 utility definitions.

* @license Apache-2.0

*/

/**

* Calculates the UTF8 byte length of a string.

* @param {string} string String

* @returns {number} Byte length

*/

export function length(string: string): number;

/**

* Reads UTF8 bytes as a string.

* @param {Uint8Array} buffer Source buffer

* @param {number} start Source start

* @param {number} end Source end

* @returns {string} String read

*/

export function read(buffer: Uint8Array, start: number, end: number): string;

/**

* Writes a string as UTF8 bytes.

* @param {string} string Source string

* @param {Uint8Array} buffer Destination buffer

* @param {number} offset Destination offset

* @returns {number} Bytes written

*/

export function write(string: string, buffer: Uint8Array, offset: number): number;