/**
* DevExtreme (data/utils.d.ts)
* Version: 19.2.7 (build 20134-0312)
* Build date: Wed May 13 2020
*
* Copyright (c) 2012 - 2020 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;
