Google::getBatch

public function getBatch(array $messages = []): string
{
	$arGroupedMessages = self::getGroupedByAppID($messages);
	if (empty($arGroupedMessages))
	{
		return '';
	}

	$batch = $this->getBatchWithModifier($arGroupedMessages, ";3;");

	if ($batch == '')
	{
		return $batch;
	}

	return $batch;
}