When using nf-core modules create tool/subtool, the main.nf file will have a process name called TOOL/SUBTOOL which should be TOOL_SUBTOOL.

The reason for that is that we don't set the self.subtool variable anymore (it's always None).
So to solve this we should just check, in the init function of the ModuleCreate class, whether the tool has a subtool and then set self.subtool to true/false accordingly.