this.parameters.clear();
        for (Parameter parameter : parameters) {
            addParameter(parameter);
        }
    }

    /**
     * @param parameter add a new parameter
     * @throws DuplicateParameterException if any
     */
    public void addParameter(Parameter parameter) throws DuplicateParameterException {
        if (parameters.contains(parameter)) {

        name_(name) {}

  void Release() override { delete this; }

  TracingOperation* CreateOperation() override {
    return new GraphOperation(graph_.get());
  }

  absl::Status AddParameter(DataType dtype, const PartialTensorShape& shape,
                            TracingTensorHandle** output) override {
    TracingOperationPtr operation(CreateOperation());