def get_next_family(self):
        """Gets the next ``Family`` in this list.

        return: (osid.relationship.Family) - the next ``Family`` in this
                list. The ``has_next()`` method should be used to test
                that a next ``Family`` is available before calling this
                method.
        raise:  IllegalState - no more elements available in this list
        raise:  OperationFailed - unable to complete request
        *compliance: mandatory -- This method must be implemented.*

        """
        try:
            next_object = next(self)
        except StopIteration:
            raise IllegalState('no more elements available in this list')
        except Exception:  # Need to specify exceptions here!
            raise OperationFailed()
        else:
            return next_object
Gets the next ``Family`` in this list.

        return: (osid.relationship.Family) - the next ``Family`` in this
                list. The ``has_next()`` method should be used to test
                that a next ``Family`` is available before calling this
                method.
        raise:  IllegalState - no more elements available in this list
        raise:  OperationFailed - unable to complete request
        *compliance: mandatory -- This method must be implemented.*