/**
* Retrieve custom configuration for a specific class.
* @param $class string|object - class or instance of class to retrieve
* @param $key string optional - key to retrieve
*/
public function getClassConfig($class, $key = null)
{
if (!is_string($class)) {
$class = get_class($class);
}
return $this->config->getClassConfig($class, $key);
}