docs: public ServiceQueryRRLoadBalancer getServiceQueryRRLoadBalancer(
              String serviceName, ServiceInstanceQuery query) {
          for (ServiceQueryRRLoadBalancer lb : svcQueryLBList) {
              if (lb.getServiceName().equals(serviceName)
                      && lb.getServiceInstanceQuery().equals(query)) {
                  return lb;
              }
          }
          ServiceQueryRRLoadBalancer lb = new ServiceQueryRRLoadBalancer(
                  lookupService, serviceName, query);
          svcQueryLBList.add(lb);
          return lb;
      }