code: public CloudPool getPool(String poolId, DetailLevel detailLevel) throws BatchErrorException, IOException {
          return getPool(poolId, detailLevel, null);
      }
docs: Gets the specified {@link CloudPool}.
  
  @param poolId
  The ID of the pool to get.
  @param detailLevel
  A {@link DetailLevel} used for controlling which properties are
  retrieved from the service.
  @return A {@link CloudPool} containing information about the specified Azure
  Batch pool.
  @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.