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

        The ``CommitmentSearchOrder`` is supplied to a
        ``CommitmentSearch`` to specify the ordering of results.

        :return: the commitment search order
        :rtype: ``osid.calendaring.CommitmentSearchOrder``


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