[Bioc-devel] svn co of devel version of a package?

How do I checkout the development version of my package?

I imagine it is some variation on this, which gets the released version:

  svn co --username='??' --password='??' https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/RCytoscape

Thanks!

 - Paul