code: function responseCreditConsume(status, credits, options){
      options = options || {};
      if(status === 'fail'){
          return {
              status: status,
              errorMessage: options.errorMessage || '',
              credits: credits
          };
      }else if(status === 'ok'){
          return {
              status: status,
              errorMessage: options.errorMessage || '',
              bizId: options.bizId,
              credits: credits
          };
      }else{
          throw new Error('status 不存在，可选值为 ok 或 fail');
      }
  }
docs: 积分扣除响应