def fixed_legend_filter_sort(self, fixed_legend_filter_sort):
        allowed_values = ["TOP", "BOTTOM"]
        if fixed_legend_filter_sort not in allowed_values:
            raise ValueError(
                "Invalid value for `fixed_legend_filter_sort` ({0}), must be one of {1}"
                .format(fixed_legend_filter_sort, allowed_values)
            )
        self._fixed_legend_filter_sort = fixed_legend_filter_sort