code: public PagedList<ComputeNode> listComputeNodes(String poolId) throws BatchErrorException, IOException {
          return listComputeNodes(poolId, null, null);
      }
docs: Lists the {@link ComputeNode compute nodes} of the specified pool.
  
  @param poolId The ID of the pool.
  @return A list of {@link ComputeNode} objects.
  @throws BatchErrorException Exception thrown when an error response is received from the Batch service.
  @throws IOException Exception thrown when there is an error in serialization/deserialization of data sent to/received from the Batch service.