/**
 * 设置画笔大小
 * @param size
 * @param index
 * @param mouseEvent
 */
export declare function setBrushSize(size: string, index: number, mouseEvent: MouseEvent): number;
/**
 * 设置马赛克工具的笔触大小
 * @param size
 * @param index
 * @param mouseEvent
 */
export declare function setMosaicPenSize(size: string, index: number, mouseEvent: MouseEvent): number;