[Libreoffice] export mathml

Hi all,

i want to export mathml from python script. I saw at the forum Basic
code snippet:

http://www.oooforum.org/forum/viewtopic.phtml?t=59791

which looks like:

for nObjectCounter = 0 to oDoc.embeddedObjects.count - 1
oEmbeddedObject = oEmbeddedObjects.getByIndex(nObjectCounter)
if oEmbeddedObject.clsid = "078B7ABA-54FC-457F-8551-6147e776a997" then
nMathObjects = nMathObjects + 1
oMathObject = oEmbeddedObject.embeddedObject
mathml = oMathObject.getMathML
end if
next

I translated this to python code, but seems that  oMathObject here
dont have any method named getMathML.

So question is, what changed in API and how i can get mathml from
formula object:

> doc = desktop.loadComponentFromURL(url, "_blank", 0, ())
> x=doc.EmbeddedObjects.getByIndex(2)
> x.EmbeddedObject.Formula
     <58> u'{ 9x + 14 =17}'
> x.EmbeddedObject.getMathML                 # no such method


Thanks for help.

P.S. Provided Basic code give the same result.