class RelationConfiguration {

    @Bean
    @ConditionalOnMissingBean(RelationManager.class)
    public RelationManager relationManager(ReactiveRepository<RelatedEntity, String> relatedRepository,
                                           ReactiveRepository<RelationEntity, String> relationRepository,
                                           ObjectProvider<RelationObjectProvider> objectProvider) {<FILL_FUNCTION_BODY>}

    @Bean
    public RelationManagerInitializer relationManagerInitializer(RelationManager manager) {
        return new RelationManagerInitializer(manager);
    }

}

        DefaultRelationManager manager = new DefaultRelationManager(relatedRepository, relationRepository);
        objectProvider.forEach(manager::addProvider);
        return manager;
    
<no_super_class>