code: @Deprecated
  	public static <T> Utils.ChecksumHashCode checksumHashCode(DataSet<T> input) throws Exception {
  		final String id = new AbstractID().toString();
  
  		input.output(new Utils.ChecksumHashCodeHelper<T>(id)).name("ChecksumHashCode");
  
  		JobExecutionResult res = input.getExecutionEnvironment().execute();
  		return res.<Utils.ChecksumHashCode> getAccumulatorResult(id);
  	}
docs: Convenience method to get the count (number of elements) of a DataSet
  as well as the checksum (sum over element hashes).
  
  @return A ChecksumHashCode that represents the count and checksum of elements in the data set.
  @deprecated replaced with {@code org.apache.flink.graph.asm.dataset.ChecksumHashCode} in Gelly