…e are no listeners. The easiest way to optimize your module and avoid this warning is to override startObserving and stopObserving methods where you set flag hasListeners and send events only when it is YES…
Andrew Gerrand — New Go programmers tend to trip up on the build environment and package model. That’s why I stress on “How to Write Go Code”. It can be deceptively simple, but once you understand how it works it’s just awesome.