CalendarLib EC: modify an event's Calendar

This does not seem to work as I get an error from Script Debugger:

use script "CalendarLib EC" version "1.1.3" -- put this at the top of your scripts
use scripting additions

--get event by UID and move it to different calendar
set theStore to fetch store
set theUID to "8B02C760-C751-463C-B0D7-6572F487BE17" --as text


set theOldEvents to fetch events by UID theUID event store theStore
set theEvent to item 1 of theOldEvents
set theNewEvent to modify event event theEvent destination calendar "OtherCal"
store event event theNewEvent event store theStore
return event identifier for event theNewEvent

Any one knows what’s wrong?

Model: iMac
AppleScript: 2.5
Browser: Safari 605.1.15
Operating System: Mac OS X (10.12.6 beta 6)

You can’t pass just a name for the destination calendar parameter. Use the fetch calendar command to get a reference to the calendar, and pass that reference to the destination calendar parameter.

Off course. Thank you