@abc.abstractmethod<EOL><INDENT>def search_among_maps(self, map_ids):<DEDENT>
pass<EOL>
Execute this search among the given list of maps.

        :param map_ids: list of maps
        :type map_ids: ``osid.id.IdList``
        :raise: ``NullArgument`` -- ``map_ids`` is ``null``

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