code: public static ServiceLocator link(ServiceLocator locator, Injector injector) {
      
      Map<Key<?>, Binding<?>> bindings = gatherBindings(injector);
      Set<Binder> binders = toBinders(bindings);
      
      return link(locator, injector, binders);
    }
docs: This method links the {@link Injector} to the {@link ServiceLocator}.