where can I find new library for "HierarchyHelper" class in pega V-22?

[AshKS (Ashwani Singh)]

where can I find new library for “HierarchyHelper” class in pega V-22 now? Previously we used “Openspan.Utils” library this was suggested here RDA - WinForm - How to reliably iterate through all controls under parent WinForm (Or select controls of specific type) | Support Center. @jeffbadger @ThomasSasnett .

[jeffbadger]

@AshKS Look in the Toolbox under Utilities → Advanced.