import type { ChartSeriesType, ChartSeriesDefaultized, PolarChartSeriesType } from "../models/seriesType/config.js";
export declare function isPolarSeriesType(seriesType: string): seriesType is PolarChartSeriesType;
export declare function isPolarSeries(series: ChartSeriesDefaultized<ChartSeriesType>): series is ChartSeriesDefaultized<PolarChartSeriesType>;