1. Write your `Workflow.cc` with our lib. (Example: xaml.gen.example.cc)
1. Write your `Workflow.cc` with our lib. If you want some example, please read `xaml.gen.example.cc` and `workflows/*.cc`. **Make your code as simple as you can**.
2.Build and run `Workflow.cc`. You're all set.
2.Compile and run your `Workflow.cc`. You're all set.