/**
* Returns the singleton instance of the class.
*
* @since 2.0.2.1
*
* @return object The Optin_Monster_Views_Preview object.
*/
public static function get_instance()
{
if (!isset(self::$instance) && !self::$instance instanceof Optin_Monster_Views_Preview) {
self::$instance = new Optin_Monster_Views_Preview();
}
return self::$instance;
}
