docs: public ServiceFuture<LoadBalancingRuleInner> getAsync(String resourceGroupName, String loadBalancerName, String loadBalancingRuleName, final ServiceCallback<LoadBalancingRuleInner> serviceCallback) {
          return ServiceFuture.fromResponse(getWithServiceResponseAsync(resourceGroupName, loadBalancerName, loadBalancingRuleName), serviceCallback);
      }