core/homeassistant/components/monoprice/services.yaml

snapshot:
  description: Take a snapshot of the media player zone.
  fields:
    entity_id:
      description: Name(s) of entities that will be snapshot. Platform dependent.
      example: "media_player.living_room"

restore:
  description: Restore a snapshot of the media player zone.
  fields:
    entity_id:
      description: Name(s) of entities that will be restored. Platform dependent.
      example: "media_player.living_room"