Message::getParamsForRest

protected function getParamsForRest(): array
{
	$params = $this->getParams()->toRestFormat();

	$attach = $this->getLinkAttachments();
	if (!empty($attach))
	{
		$params[Params::ATTACH] = array_merge($params[Params::ATTACH] ?? [], $attach);
	}

	if ($this->isCompletelyEmpty())
	{
		$params[Params::IS_DELETED] = 'Y';
	}

	return $params;
}