How to Find RadioGroupID

Hello! I am working on a recreation for the Chicago, Illinois Fire Department in the USA. However, one issue I am having is that I have no way of finding what the IDs are for my radio groups so I can use the import function, and there are too many units to make manually editing each to assign its radio group. Is there a way to figure out the radio group IDs of my dispatch center?

Currently, only via API request. The will add this to the frontend this week.