},
          absl::StrCat("ret mismatch for function ", a.signature().name()),
          diff)) {
    return false;
  }
  for (int i = 0; i < a.node_def_size(); ++i) {
    bool found = false;
    for (int j = 0; j < b.node_def_size(); ++j) {
      if (a.node_def(i).name() == b.node_def(j).name()) {
        if (!EqualFunctionNodeDef(
                a.node_def(i), b.node_def(j),

    }
    ss << "}";
    return ss.str();
  }

  void VerifyFDefNodes(const tensorflow::FunctionDef& fdef,
                       const std::unordered_set<string>& nodes) {
    ASSERT_EQ(nodes.size(), fdef.node_def_size())
        << "Got unexpected number of nodes. Expected: ["
        << absl::StrJoin(nodes, ", ")
        << "] Actual nodes in fdef: " << fdef.DebugString();
    for (const NodeDef& node_def : fdef.node_def()) {