code: public Observable<ComputeNode> getAsync(String poolId, String nodeId, ComputeNodeGetOptions computeNodeGetOptions) {
          return getWithServiceResponseAsync(poolId, nodeId, computeNodeGetOptions).map(new Func1<ServiceResponseWithHeaders<ComputeNode, ComputeNodeGetHeaders>, ComputeNode>() {
              @Override
              public ComputeNode call(ServiceResponseWithHeaders<ComputeNode, ComputeNodeGetHeaders> response) {
                  return response.body();
              }
          });
      }
docs: Gets information about the specified compute node.
  
  @param poolId The ID of the pool that contains the compute node.
  @param nodeId The ID of the compute node that you want to get information about.
  @param computeNodeGetOptions Additional parameters for the operation
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the ComputeNode object