Update an Item Link to a new name

DEVONthink
21

Hello! How does one get content record for this script?
When I use

set recs to search "kind:formattednote" in root of database "main"
repeat with rec1 in recs
    open window for rec1

it throws error on open window clause with Some parameter is missing for open window for..

22

It‘s open window for record plus the record, e.g.

open window for record theRecord