esphome-xiaomi_bslamp2/packages/activate_preset_svc.yaml

# If you want to control light presets from Home Assistant, then you can
# make use of the following service.

api:
  services:
    - service: activate_preset
      variables:
        my_group: string
        my_preset: string
      then:
        - preset.activate:
            group: !lambda 'return my_group;'
            preset: !lambda 'return my_preset;'