Can I get properties value of selection?

[Anonymous]

Hi

I'm in trouble to getting properties of selection(Python, Add-in dev)

selected = inputs.itemById('selector')

if selected and selected.selectionCount:
    entity = selected.selection(0).entity
    # ????

I wanna get Area, Volume, Mass, Density, Bounding Box, Physical Material from selected object. 

I read a lot of documents and forum thread, but I can find how to. Could somebody help me? 

[goyals]

Please take a look at http://help.autodesk.com/view/fusion360/ENU/?guid=GUID-A567D6A8-5F1B-4ACA-9E05-36C38873F3DD. Thanks