/**
* @return Scalr_Util_Observable
*/
private static function GetInternalObservable()
{
if (self::$InternalObservable === null) {
self::$InternalObservable = new Scalr_Util_Observable();
self::$InternalObservable->defineEvents(array("addClient", "updateClient", "beforeDeleteClient", "deleteClient", "addPayment", "subscrSignup", "subscrCancel", "subscrEot", "subscrUpdate"));
}
return self::$InternalObservable;
}