Make two lights follow each other

light_follow.yaml

blueprint:
  name: "Make two lights follow each other's state and brightness"
  description: "This automation blueprint makes it so two lights will always be the same"
  domain: automation
  input:
    light_1:
      name: "Light #1"
      description: "This will be one of the lights you want to control"
      selector:
        entity:
          domain: light
        
    light_2:
      name: "Light #2"
      description: T"his will be the other light to control"
      selector:
        entity:
          domain: light
          
mode: restart
trigger:
  - platform: state
    entity_id: !input light_1
    id: '1'
  - platform: state
    entity_id: !input light_2
    id: '2'

variables:
  light_1: !input light_1
  light_2: !input light_2
  light_1_device: "{{ device_id(light_1) }}"
  light_2_device: "{{ device_id(light_2) }}"

action:
  - choose:
      - conditions:
          - condition: device
            type: is_off
            device_id: "{{ light_1_device }}"
            entity_id: !input light_1
            domain: light
          - condition: trigger
            id: '1'
        sequence:
          - type: turn_off
            device_id: "{{ light_2_device }}"
            entity_id: !input light_2
            domain: light
      - conditions:
          - condition: device
            type: is_on
            device_id: "{{ light_1_device }}"
            entity_id: !input light_1
            domain: light
          - condition: trigger
            id: '1'
        sequence:
          - service: light.turn_on
            data:
              brightness: "{{ state_attr(light_1, 'brightness') }}"
            target:
              entity_id: !input light_2
      - conditions:
          - condition: device
            type: is_off
            device_id: "{{ light_2_device }}"
            entity_id: !input light_2
            domain: light
          - condition: trigger
            id: '2'
        sequence:
          - type: turn_off
            device_id: "{{ light_1_device }}"
            entity_id: !input light_1
            domain: light
      - conditions:
          - condition: device
            type: is_on
            device_id: "{{ light_2_device }}"
            entity_id: !input light_2
            domain: light
          - condition: trigger
            id: '2'
        sequence:
          - service: light.turn_on
            data:
              brightness: "{{ state_attr(light_2, 'brightness') }}"
            target:
              entity_id: !input light_1
    default: []