import { Base, Type } from "igniteui-webcomponents-core";
import { ChartType } from "./ChartType";
/**
 * @hidden
 */
export declare class ChartExUtils extends Base {
    static $t: Type;
    static a(a: ChartType): boolean;
    static b(a: ChartType): boolean;
    static c(a: ChartType): string;
}