private static extern void GPGSRegisterInviteDelegate(GPGSPushNotificationCallback notificationCb);
private static extern void GPGSRegisterInviteDelegate(GPGSPushNotificationCallback notificationCb);
private static extern void GPGSRegisterInviteDelegate(GPGSPushNotificationCallback notificationCb);
private static extern void GPGSRegisterInviteDelegate(GPGSPushNotificationCallback notificationCb);