core/homeassistant/components/amberelectric/services.yaml

get_forecasts:
  fields:
    config_entry_id:
      required: true
      selector:
        config_entry:
          integration: amberelectric
    channel_type:
      required: true
      selector:
        select:
          options:
            - general
            - controlled_load
            - feed_in
          translation_key: channel_type