export interface PaintStroke {
    u: number;
    v: number;
    radius: number;
    color: string;
}
export interface PaintLayer {
    paint(instanceId: string, stroke: PaintStroke): void;
    strokes(instanceId: string): readonly PaintStroke[];
    paintedIds(): readonly string[];
    clear(instanceId?: string): void;
    version(instanceId: string): number;
    subscribe(listener: () => void): () => void;
}
export declare function createPaintLayer(): PaintLayer;