// Runtime is not copyable
  Runtime(const Runtime&) = delete;
  Runtime& operator=(const Runtime&) = delete;

  struct TFEContextDeleter {
    void operator()(TFE_Context* p) const { TFE_DeleteContext(p); }
  };
  std::unique_ptr<TFE_Context, TFEContextDeleter> ctx_;
};

}  // namespace cc
}  // namespace experimental
}  // namespace tensorflow