code: public ManagedServiceBuilder addEndpointService(final String alias, final Object endpointService) {
          getContextMetaBuilder().addService(alias, endpointService.getClass());
          getEndpointServiceMapWithAlias().put(alias, endpointService);
          return this;
      }
docs: Add endpoint service with alias
  
  @param alias           alias
  @param endpointService endpoint service
  @return this, fluent