Workflow variables

Is there a way to use these variable in code aswell? If not how exactly can i use these variables?

The best is to look into the actual implementation using the KNIME SDK version and search for NodeModel classes that implement the LoopStartNode or LoopEndNode interface.

However, this topic among other interesting KNIME developer details are covered by our semi-monthly developer training taking place in Zurich.

Those classes don't really make it clear to me, i've looked in the flow nodes aswell, but keep getting an empty list...

There barely seems to be documentation about this :(

Can anyone help me out with a code snippet or something? I just need to get a workflowvariable from the workflow in my code.