code: public OperationFuture<LoadBalancerPool> update(LoadBalancerPool loadBalancerPool, LoadBalancerPoolConfig config) {
          LoadBalancerPoolMetadata loadBalancerPoolMetadata = findByRef(loadBalancerPool);
  
          loadBalancerPoolClient.update(
              loadBalancerPoolMetadata.getDataCenterId(),
              loadBalancerPoolMetadata.getLoadBalancerId(),
              loadBalancerPoolMetadata.getId(),
              new LoadBalancerPoolRequest()
                  .method(config.getMethod())
                  .persistence(config.getPersistence())
          );
  
          return new OperationFuture<>(
              loadBalancerPool,
              addLoadBalancerNodes(config, loadBalancerPool)
          );
      }
docs: Update load balancer pool
  
  @param loadBalancerPool load balancer pool
  @param config load balancer pool config
  @return OperationFuture wrapper for load balancer pool