In comments don't use prepositions (that, it, those) e.g. "It serves those file migration methods". Instead say e.g. "This method is intended to serve methods

In comments don't use prepositions (that, it, those) e.g. "It serves those file migration methods". Instead say e.g. "This method is intended to serve methods x,y and z or any method that has set up a migration source and sink".