Example to TTS script in HA

service: script.symfonisk_tts
data:
  Message: Hei maailma!
  Entities:
    entity_id:
      - media_player.makuuhuone_symfonisk
      - media_player.olohuone_symfonisk



service: script.symfonisk_tts
data:
  Entities:
    entity_id:
      - media_player.olohuone_symfonisk
      - media_player.makuuhuone_symfonisk
  Message: Hello world!
  Language: en-GB
  Volume: 50
  Cache: true