code: public ServiceFuture<Void> beginResizeAsync(String resourceGroupName, String clusterName, Integer targetInstanceCount, final ServiceCallback<Void> serviceCallback) {
          return ServiceFuture.fromResponse(beginResizeWithServiceResponseAsync(resourceGroupName, clusterName, targetInstanceCount), serviceCallback);
      }
docs: Resizes the specified HDInsight cluster to the specified size.
  
  @param resourceGroupName The name of the resource group.
  @param clusterName The name of the cluster.
  @param targetInstanceCount The target instance count for the operation.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object