Script: saving entity state and restore it at the end of the script

So I’m new to HA scripting, and I’m finding the documentation to be pretty lacking.

What I’m trying to do seems simple enough: at the start of the script, save the state of an entity (light) and, after all the other actions, restore that light to its previous state.

This is where I’m at:

example_script:
    sequence:
      - alias: "Set variables"
        variables:
          state_one:
            value: light.one.state

And, at the end:

       - alias: "Restore one"
         service: light.turn_on
         target:
           entity_id: >
             {% if state_one == 'on' %}
             light.one
             {% endif %}

I’m not even sure if I’m on the right track or not. Can anyone help, please?

Thank you.

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