private Attachment getScreenshot() {
final String base64Screenshot = getString(Commands.SCREENSHOT_COMMAND,
new String[] {});
final Base64 base64 = new Base64();
final byte[] decodedScreenshot = base64.decode(base64Screenshot);
final Attachment attachment = new BinaryAttachment(
LinkLabels.SCREENSHOT, decodedScreenshot, FileExtensions.JPEG);
return attachment;
}