How to call OptimizeImageTransparency from MagickWand?

[boiled_sugar]

Hi, I'm writing a small program to output animated GIFs with MagickWand.
I want to call OptimizeImageTransparency, but I can't find any Magick.* API that calls it.
I thought MagickOptimizeImageLayers did, but it doesn't seem to do so.
How to call OptimizeImageTransparency from MagcikWand?

Thanks in advance.

[magick]

Look for MagickOptimizeImageTransparency() in the next point release of ImageMagick within a week or so.

[boiled_sugar]

I've downloaded the beta and confirmed that it is implemented and actually works.
Thank you so much.