File::loadWithPreview

static function loadWithPreview(int $fileId, array $previewOptions = []): ?self
{
	$file = self::load($fileId);
	if (!$file)
	{
		return null;
	}

	$width = (int)($previewOptions['width'] ?? 0) ?: 120;
	$height = (int)($previewOptions['height'] ?? 0) ?: 120;
	$file->preview = $file->getPreview($width, $height);

	return $file;
}