Groovy rule to perform an action depends on the selected Scenario in the RTP!

This time, A different scenario was accomplished using the Groovy by one of my teammates. I thought of sharing here.

The requirement is to populate the Long-range planning and the rule will perform an action if the OEP_Plan (budget) is selected in the RTP and a different action if OEP_Actual (actual) is selected in the RTP.