code: function getBytes(node) {
      var text = getText(node);
      return text ? ByteUtils.arrayToBuffer(ByteUtils.base64ToBytes(text)) : undefined;
  }
docs: Parses bytes saved by KeePass from XML
  @param {Node} node - xml node with bytes saved by KeePass (base64 format)
  @return {ArrayBuffer} - ArrayBuffer or undefined, if the tag is empty