@abc.abstractmethod<EOL><INDENT>def get_values_by_parent_genus_type(self, value_genus_type):<DEDENT>
return<EOL>
Gets a ``ValueList`` corresponding to the given value genus ``Type`` and include any additional values with
        genus types derived from the specified ``Type``.

        :param value_genus_type: a value genus type
        :type value_genus_type: ``osid.type.Type``
        :return: the returned ``Value list``
        :rtype: ``osid.configuration.ValueList``
        :raise: ``NullArgument`` -- ``value_genus_type`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

        *compliance: mandatory -- This method must be implemented.*