class StaffDomainError(Exception):
    pass


class StaffNotFoundError(StaffDomainError):
    pass


class StaffCareerInvalidError(StaffDomainError):
    pass


class StaffClubInvalidError(StaffDomainError):
    pass


class StaffRoleInvalidError(StaffDomainError):
    pass


class StaffCapabilityInvalidError(StaffDomainError):
    pass


class StaffAssignmentConflictError(StaffDomainError):
    pass


class StaffAssignmentNotFoundError(StaffDomainError):
    pass


class StaffAssignmentEndedError(StaffDomainError):
    pass


class StaffIntegrityError(StaffDomainError):
    pass


class StaffHistoryImmutableError(StaffDomainError):
    pass