private static extern void FBNativeBannerAdBridgeOnError(int uniqueId, FBNativeAdBridgeErrorExternalCallback callback);
private static extern void FBNativeAdBridgeOnError(int uniqueId, FBNativeAdBridgeErrorExternalCallback callback);
private static extern void FBNativeBannerAdBridgeOnError(int uniqueId, FBNativeAdBridgeErrorExternalCallback callback);
private static extern void FBNativeAdBridgeOnError(int uniqueId, FBNativeAdBridgeErrorExternalCallback callback);