/**
* Singleton pattern instance getter
* @return OptimizePress_Sl_Api
*/
public static function getInstance()
{
if (null === self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Singleton pattern instance getter
* @return OptimizePress_Sl_Api
*/
public static function getInstance()
{
if (null === self::$instance) {
self::$instance = new self();
}
return self::$instance;
}