Template sensor - convert to seconds (from milliseconds)

Hi

does someone knows how to convert milliseconds to seconds in a template?
The sensor gives me milliseconds but I want to see this in seconds.

sensor:
  - platform: template
    sensors:
      uptime_response_time:
        friendly_name: 'Uptime response time'
        value_template: "{{ state_attr('sensor.uptime', 'monitor_response_time') }}"

You… divide by 1000.
There is likely a hidden question, here, is there not?

I know how to divide it but not in a template format and no there is no hidden question

This is literately in the 2nd paragraph of the template doc