export type ArtworkShapeType = "rectangle" | "ellipse";
export declare class MaxArtworkSizeConstraints {
    width: number | null;
    height: number | null;
    shapeType: ArtworkShapeType | null;
    get isCircle(): boolean;
    get isEllipse(): boolean;
    get isRectangle(): boolean;
    protected _copy(source: MaxArtworkSizeConstraints, destination: MaxArtworkSizeConstraints): void;
    clone(): MaxArtworkSizeConstraints;
    toJSON(): {
        width: number;
        height: number;
        shapeType: ArtworkShapeType;
    };
}