What is an "avenger advertisement" coming from the locationd process?

Out of boredom, I ran the console application that comes with macOS by default. As I was looking through some of the logs, I noticed a line that said: "msg":"onAvengerAdvertisementDetected: got avenger advertisement", "subHarvester":"Avenger"} coming from the subsystem com.apple.locationd.Core under the category Harvester. After looking further, I noticed a bunch of other calls using the term "advertisement" in them too. For example, there's: {"msg":"convertToSPAdvertisement", "address":, "data":, "date":, "rssi":, "status":, "reserved":, "subHarvester":"Avenger"} coming from the same subsystem and category. Does anyone have any idea where these logs are coming from? I'm on a MacBook Air M1 running macOS Monterrey 12.2.1