Template image in Android Notification

I’m trying to create an automation that sends me a notification when I’m not home and any of the doors are unlocked. In general it works great but I would also like to include a security camera photo in the notification and I can’t get that to work.

If I don’t use a template for image it works:

device_id: a02a1897d773538bb0b51499361a32ba
domain: mobile_app
type: notify
title: No one is home and at least one door is unlocked
message: >-
  Open locks: {{ expand('lock.all_locks')|selectattr('state', '==',
  'unlocked')|map(attribute='name')|join(', ') }}. If no one is home you should
  lock the doors
  notification_icon: mdi:lock-open
  image: /api/camera_proxy/camera.front
  persistent: true
  sticky: true
  tag: unlocked_door
    - action: unlocked_door_lock
      title: Lock All Doors
    - action: ignore
      title: Ignore

But if I try:

image: "/api/camera_proxy/camera.{{ expand('lock.all_locks')|selectattr('state', '==', 'unlocked')|map(attribute='entity_id')|first|replace('lock.', '')|replace('_door', '') }}"

Even if I verified in the template debugger that it generate /api/camera_proxy/camera.front

I also tried:

{{ state_attr('camera.'+expand('lock.all_locks')|selectattr('state', '==', 'unlocked')|map(attribute='entity_id')|first|replace('lock.', '')|replace('_door', ''), 'entity_picture') }}

which generate according to the template debugger: /api/camera_proxy/camera.front?token=40faf9d...

I tried turning on debug logging for homeassistant.components.automation to see what happen with the template if anything but I can’t see anything in the logs.

Is it even possible to use templates in the image?