How can you use TTS to send speech to the google speaker that started an action?

1

I’m exposing a script to google assistant. I execute the script by voice control over Google Home. In the script I’m hard coding 'media_player.entryway_speaker' as the device to use to “talk”. How can I change this so that whatever device started this script is used instead?

timer_remaining:
  sequence:
    - condition:
      condition: state
      entity_id: 'timer.frontdoor'
      state: 'active'
    - service: timer.pause
      entity_id: timer.frontdoor
    - service: tts.google_say
      data_template:
        entity_id: 'media_player.entryway_speaker'
        message: "{{state_attr('timer.frontdoor', 'remaining')[2:] | replace(':',' ')}}"
    - service: timer.start
      entity_id: timer.frontdoor
2

I think a better name would be “How do you detect the Google device that called a script?”