}

int TF_GraphNumFunctions(TF_Graph* g) {
  tensorflow::mutex_lock l(g->mu);
  return g->graph.flib_def().num_functions();
}

int TF_GraphGetFunctions(TF_Graph* g, TF_Function** funcs, int max_func,
                         TF_Status* status) {
  tensorflow::FunctionDefLibrary lib;
  {
    tensorflow::mutex_lock l(g->mu);
    lib = g->graph.flib_def().ToProto();
  }

};

TEST_F(CApiExperimentalFunctionTest, GraphRemoveFunction) {
  TF_Function* funcs[1];
  DefineFunction(func_name_, &func_);

  TF_GraphCopyFunction(func_graph_, func_, nullptr, s_);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);

  EXPECT_EQ(TF_GraphNumFunctions(func_graph_), 1);
  EXPECT_EQ(TF_GraphGetFunctions(func_graph_, funcs, 1, s_), 1);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);

  EXPECT_EQ(TF_GraphGetFunctions(host_graph_, funcs, 2, s_), 2);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
  if (GetName(funcs[0]) == GetName(func0)) {
    AssertEqual(func0, funcs[0]);
    AssertEqual(func1, funcs[1]);
  } else {
    AssertEqual(func0, funcs[1]);
    AssertEqual(func1, funcs[0]);
  }

  TF_DeleteFunction(funcs[0]);
  TF_DeleteFunction(funcs[1]);

  TF_DeleteFunction(func0);