@abc.abstractmethod<EOL><INDENT>def get_parent_locations(self, location_id):<DEDENT>
return<EOL>
Gets the parents of the given location.

        :param location_id: a location ``Id``
        :type location_id: ``osid.id.Id``
        :return: the parents of the location
        :rtype: ``osid.mapping.LocationList``
        :raise: ``NotFound`` -- ``location_id`` is not found
        :raise: ``NullArgument`` -- ``location_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

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