Apple

I see from the dictionary that ‘keywords’ are not r/o, and the wording (“to associate”) suggests they should be writable:

keywords (list of text) : A list of keywords to associate with a media item

However, I’m having difficulty figuring out the syntax. If I get my selection like this:

set myList to {}

tell application id "com.apple.Photos"

repeat with i from 1 to count of selection

set end of myList to filename of item i of (get selection)

end repeat

end tell

What verb/command should I use to add a new keyword like “Wedding” to the keywords list of every item in the entire selection?

TIA

Best

Phil