def search_index_path(self, index=None, **options):
        """
        Builds a Yokozuna search index URL.

        :param index: optional name of a yz index
        :type index: string
        :param options: optional list of additional arguments
        :type index: dict
        :rtype URL string
        """
        if not self.yz_wm_index:
            raise RiakError("Yokozuna search is unsupported by this Riak node")
        if index:
            quote_plus(index)
        return mkpath(self.yz_wm_index, "index", index, **options)
Builds a Yokozuna search index URL.

        :param index: optional name of a yz index
        :type index: string
        :param options: optional list of additional arguments
        :type index: dict
        :rtype URL string