PingFederate & F5?

I came across this information on the F5 website and was interested in finding out how this was accomplished:

http://www.f5.com/pdf/solution-center/f5-pingidentity-overview.pdf

Is this done via a specific iRule provided by F5? Is an iRule the only way to accomplish this type of session integration? Or is there a F5 APM SDK or API that would allow this type of integration with F5 APM from within PingFederate or another Java Application? I’m extremely new to F5 but it seems to me that this requires the integration to be done directly on the F5 device. Can anyone confirm/elaborate?

TIA