Instead of displaying the results, you should set the result in the response of your service call.
## Implement a subclass of a TstML::AbstractNodeExecutor
## Implement a Subclass of a TstML::AbstractNodeExecutor
The main goal of the lab is to implement executors that are subclass of `AbstractNodeExecutor` for the terminal TST nodes. In this section, We will give you the implementation of the `undock` executor. **It is not enough to copy the file, you need to understand what every line does. Once you do, call the lab assistant and explain what you think every line does.**
