{
          {{"C"}, "UnaryTest", {"a_0_arg"}},
      },
      {{"c_0_retval", "C:o:0"}});
  *library_expected.add_function() = FunctionDefHelper::Create(
      "F2", {"b_0_arg:float", "c_0_arg:float"}, {"d_0_retval:float"}, {},
      {
          {{"D"}, "BinaryTest", {"b_0_arg", "c_0_arg"}},
      },
      {{"d_0_retval", "D:o:0"}});

  {
    std::unique_ptr<FunctionLibraryDefinition> lib_def(