How use target (specific speaker/room) for notify.google_assistant_sdk service?

Hi!

I’ve just found the notify.google_assistant_sdk service that use broadcast. I’ve previous used the service tts.google_translate_say to send voice notifications to my Google Home-speakers but I want playing music to resume after the notification, which the notify.google_assistant_sdk seems to support.

However, I can’t figure out how to specify what device the broadcast should be directred to?

The documentation for the google_assistant_sdk integration states that you can use the service data attribute target to send the broadcast to “Rooms (in Google Assistant)”. When I add a target the broadcast is still played to all speakers in the house but the spoken notification includes the name of the room added?

service: notify.google_assistant_sdk
data:
  message: Test
  target:
    - Vardagsrum

Is it somehow possible to list the entities avaliable for the service data attribute target? I have the Google Assistant, Google Assistant SDK and Google Cast integrations set up and working.