How can I get "true" output in List.Contains node?

[ys.cheongM3WMR]

Hello, hope you all are doing well.

I was working on the dynamo creating PowerBI Data with the room boundary extracted from Revit.
(From AussieBIMguru channel on Youtube, Revit plans to Power BI using Dynamo! (Part 1 of 2) - YouTube)

By using “Element.GetParameterValueByName” node, I could get room list by level, but somehow I can’t get them as true in the List.Contains node.

I have attached my Dynamo file in case some of you might have a look (hopefully).

AussieBIMguru_Floorplan+PowerBI.dyn (59.8 KB)

Please take care, and thank you for reading my question.

Sincerely,

Julia

[pyXam]

[ys.cheongM3WMR]

OMG Thank you so much. I was struggling with this over 3 days
Thank you so much for your help!!