docs: public static byte[] storeContentAndTransformOperation(OperationContext context, ModelNode operation, ContentRepository contentRepository) throws IOException, OperationFailedException {
          if (!operation.hasDefined(CONTENT)) {
              throw createFailureException(DomainControllerLogger.ROOT_LOGGER.invalidContentDeclaration());
          }
          final ModelNode content = operation.get(CONTENT).get(0);
          if (content.hasDefined(HASH)) {
              // This should be handled as part of the OSH
              throw createFailureException(DomainControllerLogger.ROOT_LOGGER.invalidContentDeclaration());
          }
          final byte[] hash = storeDeploymentContent(context, operation, contentRepository);
  
          // Clear the contents and update with the hash
          final ModelNode slave = operation.clone();
          slave.get(CONTENT).setEmptyList().add().get(HASH).set(hash);
          // Add the domain op transformer
          List<DomainOperationTransmuter> transformers = context.getAttachment(OperationAttachments.SLAVE_SERVER_OPERATION_TRANSMUTERS);
          if (transformers == null) {
              context.attach(OperationAttachments.SLAVE_SERVER_OPERATION_TRANSMUTERS, transformers = new ArrayList<>());
          }
          transformers.add(new CompositeOperationAwareTransmuter(slave));
          return hash;
      }