How to define a protocol that contains an enum with values it defines itself and one of them is stored as an attribute?

protocol TrackableAction {



    var identifier: String { get }



}



struct ServerAction: TrackableAction {



    let identifier = "Server"



    enum Label: String {



        case NotImplemented = "Feature not implemented"

        case NotPlanned = "Feature is not planned in this version"



    }



   var label: Label



}



struct ClientAction: TrackableAction {



    let identifier = "Client"



    enum Label: String {



        case NoneExisting = "Does not exist"

        case CannotFindRoot = "The root was unknown"



    }



   var label: Label



}

usage:

ServerAction(label: .NotImplemented)

ClientAction(label: .NoneExisting)

Is it possible to extend the TrackableAction to have the duplicated enum and label definition included?

I want this to be able to send objects of that type to a function

func log(trackableAction: TrackableAction) {

    // sends strings to a log service

    print(trackableAction.label) // ERROR



}