uniqueID = fmt.Sprintf("%X", args.Object.ModTime.UnixNano())
	}

	respElements := map[string]string{
		"x-amz-request-id": args.RespElements["requestId"],
		"x-amz-id-2":       args.RespElements["nodeId"],
		"x-minio-origin-endpoint": func() string {
			if globalMinioEndpoint != "" {
				return globalMinioEndpoint
			}
			return getAPIEndpoints()[0]
		}(), // MinIO specific custom elements.
	}

func extractRespElements(w http.ResponseWriter) map[string]string {
	if w == nil {
		return map[string]string{}
	}
	return map[string]string{
		"requestId":      w.Header().Get(xhttp.AmzRequestID),
		"nodeId":         w.Header().Get(xhttp.AmzRequestHostID),
		"content-length": w.Header().Get(xhttp.ContentLength),
		// Add more fields here.
	}
}

// Trims away `aws-chunked` from the content-encoding header if present.

	// These are static for all objects extracted.
	reqParams := extractReqParams(r)
	respElements := map[string]string{
		"requestId": w.Header().Get(xhttp.AmzRequestID),
		"nodeId":    w.Header().Get(xhttp.AmzRequestHostID),
	}
	if sc == "" {
		sc = storageclass.STANDARD
	}

	putObjectTar := func(reader io.Reader, info os.FileInfo, object string) error {
		size := info.Size()

      AbstractGraphTest.validateGraph(graph);

      Collections.shuffle(nodeList, gen);
      for (Integer node : nodeList) {
        assertThat(graph.addNode(node)).isTrue();
      }
      Collections.shuffle(edgeList, gen);
      for (EndpointPair<Integer> edge : edgeList) {
        assertThat(graph.putEdge(edge.nodeU(), edge.nodeV())).isTrue();
      }

    checkNotNull(nodeU);
    checkNotNull(nodeV);
    return nodes().contains(nodeU) && successors(nodeU).contains(nodeV);
  }

  @Override
  public boolean hasEdgeConnecting(EndpointPair<N> endpoints) {
    checkNotNull(endpoints);
    if (!isOrderingCompatible(endpoints)) {
      return false;
    }
    N nodeU = endpoints.nodeU();
    N nodeV = endpoints.nodeV();

     *
     * @param node1 the first artifact declaration
     * @param node2 the second artifact declaration
     * @return the artifact declaration to use: <code>node1</code>; <code>node2</code>; or <code>null</code>if
     *         this conflict cannot be resolved
     * @since 3.0
     */
    ResolutionNode resolveConflict(ResolutionNode node1, ResolutionNode node2);

    // whatever ordering the graph's nodes do, so ImmutableSortedMap is unnecessary even if the
    // input nodes are sorted.
    ImmutableMap.Builder<N, GraphConnections<N, V>> nodeConnections = ImmutableMap.builder();
    for (N node : graph.nodes()) {
      nodeConnections.put(node, connectionsOf(graph, node));
    }
    return nodeConnections.buildOrThrow();
  }

        add.forEach((name, node) -> org.merge(name, node, this::merge));
        return org;
    }

    private BuildStep merge(BuildStep node1, BuildStep node2) {
        node1.predecessors.addAll(node2.predecessors);
        node1.successors.addAll(node2.successors);
        node2.mojos.forEach((k, v) -> node1.mojos.merge(k, v, this::mergeMojos));
        return node1;
    }

                + "{\"_source\":{\"type\":\"heartbeat\",\"instanceId\":\"node1@host1\",\"hostname\":\"host1\",\"name\":\"node1\",\"createdTime\":1000}},"
                + "{\"_source\":{\"type\":\"heartbeat\",\"instanceId\":\"node2@host2\",\"hostname\":\"host2\",\"name\":\"node2\",\"createdTime\":2000}}"
                + "]}}";
        final CoordinatorHelper helper = createCapturingHelper("node1@host1", null, null, createMockResponse(200, searchResponse));

  @Override
  public int degree(N node) {
    return delegate().degree(node);
  }

  @Override
  public int inDegree(N node) {
    return delegate().inDegree(node);
  }

  @Override
  public int outDegree(N node) {
    return delegate().outDegree(node);
  }

  @Override
  public boolean hasEdgeConnecting(N nodeU, N nodeV) {
    return delegate().hasEdgeConnecting(nodeU, nodeV);
  }

  @Override