code: @Override
      public boolean configure(final FeatureContext context) {
          final Configuration config = context.getConfiguration();
  
          if (!config.isRegistered(EntityFieldsProcessor.class)) {
  
              // register EntityFilteringFeature
              if (!config.isRegistered(EntityFilteringFeature.class)) {
                  context.register(EntityFilteringFeature.class);
              }
              // Entity Processors.
              context.register(EntityFieldsProcessor.class);
              // Scope Resolver.
              context.register(EntityFieldsScopeResolver.class);
  
              return true;
          }
          return false;
      }
docs: {@inheritDoc}