Clear All macOS Notifications.applescript

(*
 https://apple.stackexchange.com/questions/184633/how-do-i-clear-all-os-x-notifications-with-1-click
*)

tell application "System Events"
    tell process "NotificationCenter"
        set numwins to (count windows)
        repeat with i from numwins to 1 by -1
            click button "Close" of window i
        end repeat
    end tell
end tell