@abc.abstractmethod<EOL><INDENT>def get_book_search_order_record(self, book_record_type):<DEDENT>
return<EOL>
Gets the book search order record corresponding to the given book record Type.

        Multiple retrievals return the same underlying object.

        :param book_record_type: a book record type
        :type book_record_type: ``osid.type.Type``
        :return: the book search order record
        :rtype: ``osid.commenting.records.BookSearchOrderRecord``
        :raise: ``NullArgument`` -- ``book_record_type`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unsupported`` -- ``has_record_type(book_record_type)`` is ``false``

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