import myStuff 1.0 as MS //

ApplicationWindow {
    MS.PluginHost { // Internally has a map/dictionary of "name" -> Item. The registered items
        id: pluginHost
        MS.PluginBootstrapper {
            Component.onCompleted: bootstrapMyPlugins(pluginHost) // I want this to be done when all other Item's in the tree have registered to the pluginHost. But the order of Component.onCompleted is not guaranteed iirc, so I cannot know for sure that "b" is registered.
        }
    }
    MS.A { } // Does not register itself to the pluginHost
    MS.B {
        id: b
        Component.onCompleted: pluginHost.register("b", b)
    }
    MS.C { } // Does not register itself to the pluginHost
}