code: public CompletionStage<ResponseBuilder> deleteResource(final ResponseBuilder builder) {
  
          LOGGER.debug("Deleting {}", getIdentifier());
  
          final TrellisDataset mutable = TrellisDataset.createDataset();
          final TrellisDataset immutable = TrellisDataset.createDataset();
  
          return handleDeletion(mutable, immutable)
              .thenApply(future -> builder)
              .whenComplete((a, b) -> immutable.close())
              .whenComplete((a, b) -> mutable.close());
      }
docs: Delete the resource in the persistence layer.
  
  @param builder the Trellis response builder
  @return a response builder promise