TF_DeleteImportGraphDefOptions(opts);
  opts = TF_NewImportGraphDefOptions();
  TF_ImportGraphDefOptionsSetPrefix(opts, "imported3");
  TF_ImportGraphDefOptionsAddControlDependency(opts, feed);
  TF_ImportGraphDefOptionsAddControlDependency(opts, feed2);
  TF_GraphImportGraphDef(graph, graph_def, opts, s);
  ASSERT_EQ(TF_OK, TF_GetCode(s)) << TF_Message(s);

// Cause the imported graph to have a control dependency on `oper`. `oper`
// should exist in the graph being imported into.
TF_CAPI_EXPORT extern void TF_ImportGraphDefOptionsAddControlDependency(
    TF_ImportGraphDefOptions* opts, TF_Operation* oper);

// Add an output in `graph_def` to be returned via the `return_outputs` output

  opts->opts.input_map[TensorId(src_name, tensorflow::Graph::kControlSlot)] =
      TensorId(dst->node.name(), tensorflow::Graph::kControlSlot);
}

extern void TF_ImportGraphDefOptionsAddControlDependency(
    TF_ImportGraphDefOptions* opts, TF_Operation* oper) {
  opts->opts.control_dependencies.push_back(oper->node.name());
}