/*!
 * Copyright 2021 WPPConnect Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/** @whatsapp 15688
 * @whatsapp 615688 >= 2.2222.8
 */
export declare namespace Base64 {
    const BASE64_DATA_URL_SCHEME: 'data:image/jpeg;base64,';
    function encodeB64(data: ArrayLike<number> | ArrayBufferLike): string;
    function encodeB64UrlSafe(data: ArrayLike<number> | ArrayBufferLike, t?: boolean): string;
    function decodeB64(data: string): ArrayBufferLike;
    function decodeB64UrlSafe(data: string): ArrayBufferLike;
    function decodeB64ToJsArray(data: string): number[];
    function sizeWhenB64Decoded(data: ArrayLike<number> | ArrayBufferLike): number;
}