code: @POST
  	public ReplyObject createAccumulator(AccumulatorPO po){
  		try{
  			AccumulatorDefinitionAO ret = getAccumulatorAPI().createAccumulator(po);
  			return ReplyObject.success("created", ret);
  		}catch(APIException e){
  			return ReplyObject.error(e);
  		}
  	}
docs: Creates new accumulator.
  @param po the accumulator parameter object.
  @return