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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
/** * Converts given data with base64 encoding * @param data input to encode */export function encode(data: string | ArrayBuffer): string {  if (typeof data === "string") {    return btoa(data);  } else {    const d = new Uint8Array(data);    let dataString = "";    for (let i = 0; i < d.length; ++i) {      dataString += String.fromCharCode(d[i]);    }
    return btoa(dataString);  }}
/** * Converts given base64 encoded data back to original * @param data input to decode */export function decode(data: string): ArrayBuffer {  const binaryString = decodeString(data);  const binary = new Uint8Array(binaryString.length);  for (let i = 0; i < binary.length; ++i) {    binary[i] = binaryString.charCodeAt(i);  }
  return binary.buffer;}
/** * Decodes data assuming the output is in string type * @param data input to decode */export function decodeString(data: string): string {  return atob(data);}