private static int _GetOwnedItemCount(string sku)
    {
        Enhance.InitializeEnhance();

#if UNITY_EDITOR
        return(FGLEditorInternals.GetOwnedItemCount(sku));
#elif UNITY_ANDROID
        return(FGLAndroidInternals.GetOwnedItemCount(sku));
#elif UNITY_IOS
        return(FGLiOSInternals.GetOwnedItemCount(sku));
#else
        return(0);
#endif
    }