lock:
  - platform: template
    unique_id: templatelock.patio_door
    name: Patio Door
    value_template: "{{ is_state('switch.shelly_sliding_glass_door', 'on') }}"
    lock:
      action: switch.turn_on
      target:
        entity_id: switch.shelly_sliding_glass_door
    unlock:
      action: switch.turn_off
      target:
        entity_id: switch.shelly_sliding_glass_door