/**
* DevExtreme (data/utils.d.ts)
* Version: 21.1.0 (build 21016-0316)
* Build date: Sat Jan 16 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
/**
 * Encodes a string or array of bytes in Base64.
 */
export function base64_encode(input: string | Array<number>): string;
