Ignition on/off events not received.

I added a device (GP4000 protocol:jt600) via web interface and configured the events ignition on and off to send by web. But after turning on and off ignition, there was no corresponding event in the database. Here is a screenshot of the protocol documentation:

Traccar doesn't support ignition for this particular protocol. If you need help with implementing it send an email to support email.

Then what protocols do traccar supports ignition?

Use this search query to find out:

https://github.com/tananaev/traccar/search?q=KEY_IGNITION

Thanks