[IronPython] How to get access to enum?

[Kristian Jaksch]

How can I get access to enums in IronPython?

For example, when running IronPython + Silverlight I need access to
the Visibility enum:

btnMaxPlot.Visibility = Visibility.Collapsed

This results in an error:
"NameError: name 'Visibility' is not defined"

Thanks for help!

/Kristian