import { Base, Type } from "igniteui-react-core";
import { SizeData } from "igniteui-react-core";
import { PointData } from "igniteui-react-core";
import { RectData } from "igniteui-react-core";
/**
 * @hidden
 */
export declare class DoughnutChartLabelVisualData extends Base {
    static $t: Type;
    private _labelValue;
    get labelValue(): any;
    set labelValue(a: any);
    private _labelSize;
    get labelSize(): SizeData;
    set labelSize(a: SizeData);
    private _labelPosition;
    get labelPosition(): PointData;
    set labelPosition(a: PointData);
    scaleByViewport(a: RectData): void;
    serialize(): string;
}