Document::getAction

public function getAction(BitrixDocumentGeneratorDocument $document, CRestServer $restServer = null)
{
	$result = $document->getFile();
	if($result->isSuccess())
	{
		return ['document' => $result->getData()];
	}
	else
	{
		$this->errorCollection = $result->getErrorCollection();
	}

	return null;
}