How to dim Bedside lamp with Xiaomi button?

Configuration
3

I’ve read whole thread about this, but it is very complicated to understand for me.

I’ve created some configuration:
(automations.yaml)

- alias: Zmiana jasnosci lampki
  id: '12345677'
  trigger:
  - platform: event
    event_type: click
    event_data:
      entity_id: binary_sensor.switch_158d0001dc44c4
      click_type: long_click_press
  - platform: event
    event_type: click
    event_data:
      entity_id: binary_sensor.switch_158d0001dc4519
      click_type: long_click_press
  action:
   - service: script.turn_on
     entity_id: script.zmien_jasnosc
    
- alias: Zmiana jasnosci lampki off
  id: '12345678'
  trigger:
  - platform: state
    entity_id: binary_sensor.switch_158d0001dc44c4
    to: 'off'
  - platform: state
    entity_id: binary_sensor.switch_158d0001dc4519
    to: 'off'
  action:
   - service: script.turn_off
     entity_id: script.zmien_jasnosc

Scripts.yaml

zmien_jasnosc:
    sequence:
    - condition: state
      entity_id: light.yeelight_bedside_7811dc90cd74
      state: 'on'
    - service: light.turn_on
      entity_id: light.yeelight_bedside_7811dc90cd74
      data_template:
       transition: '1'
       brightness: >-
        {% set n = states.light.yeelight_bedside_7811dc90cd74.attributes.brightness + 25 %}
        {% if n > 255 %}
          10
        {% else %}
         {{ n | int }}
        {% endif %}
    - service: script.turn_off
      entity_id: script.zmien_jasnosc
    - service: script.turn_on
      entity_id: script.zmien_jasnosc

Unfortunately it didn’t worked.