code: public ModelNode fromEntityList(List<T> entities)
      {
          ModelNode operation = new ModelNode();
          operation.get(OP).set(COMPOSITE);
          operation.get(ADDRESS).setEmptyList();
  
          List<ModelNode> steps = new ArrayList<ModelNode>();
  
          for(T entity : entities)
          {
              steps.add(fromEntity(entity));
          }
  
          operation.get(STEPS).set(steps);
          return operation;
      }
docs: Creates a composite operation to create entities.
  Basically calls {@link #fromEntity(Object)}
  
  @param entities
  @return a composite ModelNode structure