code: public FutureData<Dpu> dpu(String historicsId) {
          final FutureData<Dpu> future = new FutureData<Dpu>();
          URI uri = newParams().put("historics_id", historicsId).forURL(config.newAPIEndpointURI(DPU));
          Request request = config.http().GET(uri, new PageReader(newRequestCallback(future, new Dpu(), config)));
          performRequest(future, request);
          return future;
      }
docs: Retrieve the DPU usage of a historics job
  @param historicsId id of the historics job to get the DPU usage of
  @return future containing DPU response