Method tick

tests/gtest_subtree.cpp:57–66

  {}

  BT::NodeStatus tick() override
  {
    auto msg = getInput<std::string>("in");
    if(!msg)
    {
      throw BT::RuntimeError("missing required input [message]: ", msg.error());
    }
    setOutput("out", msg.value());
    return BT::NodeStatus::SUCCESS;
  }

  static BT::PortsList providedPorts()
  {