/**
* Returns an array of parameter to send to Finna's cover generator.
* Fallbacks to VuFind's getThumbnail if no record image with the
* given index was found.
*
* @param string $size Size of thumbnail
* @param int $index Image index
*
* @return array|bool
*/
public function getRecordImage($size = 'small', $index = 0)
{
$params = parent::getThumbnail($size);
if ($params && !is_array($params)) {
$params = ['url' => $params];
}
return $params;
}
