How to create Iselection filter

anybody can share your knowledge “how to create Iselectionfilter in python node”

sel = uidoc.Selection.PickElementsByRectangle(onlyducts)

OUT = sel

image

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It looks like you have created two topics for the same question. In the future please refrain from this.

In response, please review the following Page to see if it can help you.
http://help.autodesk.com/view/RVT/2014/ESP/?guid=GUID-97372731-5ACA-4EB7-ABDF-7E6B56640DA2

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anybpdy can explain how can use Iselectionfilter in python? i refer apidocs but i didn’t understand how to use