how to "value" parameter in ResultExtensions.swift of ReactiveSwift folder

[HuaxinChame]

I use the "ReactiveObjCBridge" master branch to pod install. But Recently, I just pod install without modify any version (still use master), found that the "value" parameter is changed to internal, so that I can not use it anymore. Could you please help to share what can I do then ?

Here is the old code sample:
guard let value = event.value else { return }

Any idea for this ? Thanks a lot.