private var interceptors: [AnyRoutingInterceptor] = []

    private var contextTasks: [AnyContextTask] = []

    private var postTasks: [AnyPostRoutingTask] = []

    mutating func add(_ interceptor: some RoutingInterceptor) {

        interceptors.append(RoutingInterceptorBox(interceptor))

    }

    mutating func add(_ contextTask: some ContextTask) {

        contextTasks.append(ContextTaskBox(contextTask))

    }

    mutating func add(_ postTask: some PostRoutingTask) {

        postTasks.append(PostRoutingTaskBox(postTask))

    }

    var interceptor: AnyRoutingInterceptor? {

        !interceptors.isEmpty ? interceptors.count == 1 ? interceptors.first : InterceptorMultiplexer(interceptors) : nil

    }

    var contextTask: AnyContextTask? {

        !contextTasks.isEmpty ? contextTasks.count == 1 ? contextTasks.first : ContextTaskMultiplexer(contextTasks) : nil

    }

    var postTask: AnyPostRoutingTask? {

        !postTasks.isEmpty ? postTasks.count == 1 ? postTasks.first : PostRoutingTaskMultiplexer(postTasks) : nil

    }