Get location name from group item

Add-ons UIs
1

anybody knows the syntax to get the location name from a group item?

s.th. like items.gGroupItem.location.name

component: oh-list-card
config:
  simpleList: false
  accordionList: false
  mediaList: false
  title: Rauchmelder
  footer: =items.gGroupItem.location.name