Template switch and input select

Configuration
1

Hi,

I am trying to create the below temaplate switch

  - platform: template
    switches:
      bd3_cover:
        value_template: "{{ is_state('input_select.bd3_roman_blind', 'open') }}"
        turn_on:
          service: input_select.select_option
          target:
            entity_id: input_select.bd3_roman_blind
          data: 
           options: open
        turn_off:
          service: input_select.select_option
          target:
            entity_id: input_select.bd3_roman_blind
          data: 
           options: closed

Essentially, i have an input_select entity which i want change into a switch. When the switch changes state (on or off) i want to update the input_select option.

Any ideas as this isnt working.

Thanks.

2

The issue is the key should be option (not options) for the data in both service calls.