Automation med tid fra "input_number"

- id: '1592467877348'
  alias: Ventilatortimer
  trigger:
  - entity_id: input_boolean.start_timer
    platform: state
    to: 'on'
  action:
  - data: {}
    entity_id: switch.sonoff_ventilator_laura
    service: switch.turn_on
  - delay: {{ states(''input_number.ventilator_timer'') | int }}
  - entity_id: switch.sonoff_ventilator_laura
    service: switch.turn_off
  - data: {}
    entity_id: input_boolean.start_timer
    service: input_boolean.turn_off