/**
 * Copyright (c) 2017-2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * Adapted from https://github.com/rcsb/mmtf-javascript
 * @author Alexander Rose <alexander.rose@weirdbyte.de>
 * @author David Sehnal <david.sehnal@gmail.com>
 */
export declare function utf8Write(data: Uint8Array, offset: number, str: string): void;
export declare function utf8Read(data: Uint8Array, offset: number, length: number): string;
export declare function utf8ByteCount(str: string): number;