Help Applying mapping a nested list of elements to list of parameters

I have a list of sheets from a sheets set, and I have created a project parameter for sheets with the sheet set name. I’m trying to set the project parameter for each sheet within the sheet sets to be true according to whether it is included in that sheet set.

I can’t figure out the list logic to do this however, if anyone could help me out I would really appreciate it.

Please post your dyn and revit file

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