Drupal Association members fund grants that make connections all over the world.
Is it possible to create a mapper for the Role Reference Module? Or is there a other way to Import roles?
Mappers for fields or properties provided by a contrib module, should go in that contrib module, so moving this issue to the Role Reference issue queue.
Closing this as duplicate also, since there is already an issue open about this: #1703070: Add Feeds support to role reference field.
Drupal is a registered trademark of Dries Buytaert.