@abc.abstractmethod<EOL><INDENT>def get_bin_search_order(self):<DEDENT>
return<EOL>
Gets a bin search order.

        The ``BinSearchOrder`` is supplied to a ``BinSearch`` to specify
        the ordering of results.

        :return: the bin search order
        :rtype: ``osid.resource.BinSearchOrder``


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