Audacity

I'm taking Plastic for a spin and it's looking promising. Unfortunately, the PDF "Migrating from Perforce to Plastic SCM" appears to be outdated as there is no "guimporter" tool in the client directory. What is the recommended approach for importing the contents of a Perforce depot into Plastic? I tried to find the relevant documentation, but I failed at that. I see some references to how in Plastic v5 can use a Git fast-import format, but I'm not sure that Perforce can output that format; so I'm wondering what the recommended approach is for importing data from Perforce.