/**
 * 绘制多张图
 * @param {object} config 输入参数
 * @param {Array<string>} config.imgs base64图片列表
 * @returns {string} 图片url
 *
 * @example
 *
 * mergeMultiCanvasPic({
 *   imgs: [img, img2, img3],
 * })
 */
export declare function mergeMultiCanvasPic({ imgs, }: {
    imgs: Array<string>;
}): Promise<string>;