import { AnnotationLayerDescription } from "./AnnotationLayerDescription";
import { Type } from "./type";
/**
 * @hidden
 */
export declare class TrendLineLayerDescription extends AnnotationLayerDescription {
    static $t: Type;
    protected get_type(): string;
    constructor();
    private gp;
    get targetSeriesRef(): string;
    set targetSeriesRef(a: string);
    private go;
    get actualTargetSeriesRef(): string;
    set actualTargetSeriesRef(a: string);
    private gq;
    get trendLineType(): string;
    set trendLineType(a: string);
    private gm;
    get trendLinePeriod(): number;
    set trendLinePeriod(a: number);
}