}
			}
		})
	}

	var graphRoots []module.Version
	if inWorkspaceMode() {
		graphRoots = roots
	} else {
		graphRoots = MainModules.Versions()
	}
	var (
		mu       sync.Mutex // guards mg.g and hasError during loading
		hasError bool
		mg       = &ModuleGraph{
			g: mvs.NewGraph(cmpVersion, graphRoots),
		}
	)

	if pruning != workspace {

    const GraphDef& auto_clustered_graph_def) {
  testing::ResetClusterSequenceNumber();
  Graph graph(OpRegistry::Global());
  GraphConstructorOptions graph_opts;
  graph_opts.expect_device_spec = true;
  graph_opts.allow_internal_ops = true;
  TF_RETURN_IF_ERROR(
      ConvertGraphDefToGraph(graph_opts, auto_clustered_graph_def, &graph));

  // cluster_id -> (operation name -> # of operations)
  const int kNoCluster = -1;