by Carlos Alexandre Fonseca.
Hi all.
I think this document has an error. In the end, in:
Code that runs after restore
You can have a method called after_restore inside your TASK (not step) class, restore_mymodule_activity_task.
It's suggest i can use the method $this->get_mappingid in restore_mymodule_activity_task class, but there is no such method in this class, only in restore_activity_structure_step