HA - State change event with template condition

- id: 'test_anybody_home'
  alias: 'Test: Somebody returns home'
  description: ''
  trigger:
    event_type: state_changed
    platform: event
  condition:
    - condition: template
      # Only look at persons who changes state from 'not_home' to 'home'
      value_template: >
        {{ trigger.event.data.entity_id.startswith('person.')
         and trigger.event.data.old_state is not none
         and trigger.event.data.old_state.state == 'not_home'
         and trigger.event.data.new_state is not none
         and trigger.event.data.new_state.state == 'home' }}
  action:
  - data:
      message: Somebody is now home
    service: notify.notify
  mode: single