valve:
  - platform: template
    name: Test Valve
    id: test_valve
    optimistic: true
    has_position: true

button:
  - platform: template
    name: Valve Commands
    on_press:
      - valve.open: test_valve
      - valve.close: test_valve
      - valve.stop: test_valve
      - valve.toggle: test_valve
      - valve.control:
          id: test_valve
          position: 50%