Subgraph& subgraph = entry.second;
    FixupSourceAndSinkEdges(subgraph.GetGraph());
  }

  if (VLOG_IS_ON(1)) {
    // Dump subgraphs.
    for (auto& entry : subgraphs_) {
      DumpGraphToFile(
          absl::StrCat("encapsulate_subgraphs_subgraph_", entry.first),
          *entry.second.GetGraph(), library);
    }
  }

  return s;
}

Status Encapsulator::BuildFunctionDefs(

  metagraph_def.ParseFromArray(metagraph->data, metagraph->length);
  TF_DeleteBuffer(metagraph);

  EXPECT_EQ(TF_OK, TF_GetCode(s)) << TF_Message(s);
  CSession csession(session);

  // Retrieve the regression signature from meta graph def.
  const auto signature_def_map = metagraph_def.signature_def();
  const auto signature_def = signature_def_map.at("regress_x_to_y");

			// from the go.work file and preserve the invariant that all
			// of rs.rootModules are in mg.g.
			roots = rs.rootModules
		}
		mg := &ModuleGraph{
			g: mvs.NewGraph(cmpVersion, roots),
		}

		if rs.pruning == pruned {
			mainModule := MainModules.mustGetSingleMainModule()
			// The roots of a single pruned module should already include every module in the