In Hscript expressions we could use `@pdg_input` and `@pdg_output` to get a work item's input and output. But how to do this Python? I've tried everything that I can think of:

* attrib("pdg_input")
* inputResultData
* expectedInputResultData
* resultData
* data.allDataMap


None of these works! How could it be so hard to just get the most basic attributes of work items?

for me I used
to get the @pdg_output and
to get the @pdg_input