// Define a second function
  TF_Function* func1;
  DefineFunction("FooFunc1", &func1);
  TF_GraphCopyFunction(host_graph_, func1, nullptr, s_);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);

  // Get both function from host_graph_
  EXPECT_EQ(TF_GraphNumFunctions(host_graph_), 2);
  EXPECT_EQ(TF_GraphGetFunctions(host_graph_, funcs, 0, s_), 0);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);