addSupervisor abstract method
Adds supervisorId to the supervisors of the slot with slotId.
Implementation
Future<void> addSupervisor({required String token, required int slotId, required int supervisorId});
Adds supervisorId to the supervisors of the slot with slotId.
Future<void> addSupervisor({required String token, required int slotId, required int supervisorId});