Component<ScalerFactory> getScalerComponent() {
  return createComponent()
    .bind<Scaler, ScalerImpl>()
    .registerFactory<fruit::Annotated<Annotation, ScalerImpl>(Assisted<double>)>([](double) { return (ScalerImpl*)nullptr; });
}

Component<ScalerFactoryAnnot> getScalerComponent() {
  return createComponent()
    .bind<ScalerAnnot, fruit::Annotated<Annotation, ScalerImpl>>();
}

Component<intAnnot> getComponent() {
  return createComponent()
    .registerConstructor<intAnnot()>()
    .registerConstructor<intAnnot()>();
}

Component<Required<std::string>, std::string> getComponent() {
  return createComponent();
}

Component<Required<X, X>> getComponent() {
  return createComponent();
}

Component<int> getComponent() {
  return createComponent()
    .registerConstructor<int()>()
    .install(getParentComponent());
}