What goes where - samsunt_tv picture mode

Configuration
1

IIm trying to get a picture mode selction button in my media player for samsung tv with ha-samsungtv-smart.
Im using smartthings connection.

i dont know where this code should go as im new to HAS.

heres the code:

{
“entity_id”: “media_player.samsungtv”,
“picture_mode”: “your mode”
}

here is the configuration info:
ollo69/ha-samsungtv-smart: :tv: Home Assistant SamsungTV Smart Component with simplified SmartThings API Support configurable from User Interface. (github.com)

thanks for any help to get it working.
Greatly apriciated.