opts = TF_NewImportGraphDefOptions();
  TF_ImportGraphDefOptionsSetPrefix(opts, "imported4");
  TF_ImportGraphDefOptionsRemapControlDependency(opts, "imported/feed", feed);
  TF_GraphImportGraphDef(graph, graph_def, opts, s);
  ASSERT_EQ(TF_OK, TF_GetCode(s)) << TF_Message(s);

  TF_Operation* scalar4 =
      TF_GraphOperationByName(graph, "imported4/imported3/scalar");
  TF_Operation* feed4 =

    TF_ImportGraphDefOptions* opts, unsigned char uniquify_prefix);

// Set any imported nodes with input `src_name:src_index` to have that input
// replaced with `dst`. `src_name` refers to a node in the graph to be imported,
// `dst` references a node already existing in the graph being imported into.
// `src_name` is copied and has no lifetime requirements.