import { CornerRadii } from '../widgets/CornerRadii.js';
/**
 * CanvasRenderingContext2D.roundRect, but safe to use in browsers without
 * support, like Firefox.
 *
 * @category Helper
 */
export declare function safeRoundRect(ctx: CanvasRenderingContext2D, x: number, y: number, w: number, h: number, radii: CornerRadii): void;