@abc.abstractmethod<EOL><INDENT>def get_map_search_session(self):<DEDENT>
return<EOL>
Gets the ``OsidSession`` associated with the map search service.

        :return: a ``MapSearchSession``
        :rtype: ``osid.mapping.MapSearchSession``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unimplemented`` -- ``supports_map_search()`` is ``false``

        *compliance: optional -- This method must be implemented if
        ``supports_map_search()`` is ``true``.*