ROS 2 Paramter Async Test

test_parameters_async.cpp

  auto parameters = parameters_client->get_parameters({"parameter_number", "parameter_string", "parameter_boolean"});
  if (rclcpp::spin_until_future_complete(node, parameters) != rclcpp::executor::FutureReturnCode::SUCCESS)
  {
    std::cerr << "Failed to set parameter: " << result.reason << std::endl;
    return -1;
  }
  for (auto & parameter : parameters.get()) {
    std::cout << "Parameter name: " << parameter.get_name() << std::endl;
    std::cout << "Parameter value (" << parameter.get_type_name() << "): " <<
      parameter.value_to_string() << std::endl;
  }