code: @Override
    public void register(final String name, final CompletesEventuallyProvider completesEventuallyProvider) {
      completesEventuallyProvider.initializeUsing(stage());
      this.completesProviderKeeper.keep(name, completesEventuallyProvider);
    }
docs: Registers the {@code CompletesEventuallyProvider} plugin by {@code name}.
  @param name the {@code String} name of the {@code CompletesEventuallyProvider} to register
  @param completesEventuallyProvider the {@code CompletesEventuallyProvider} to register