/**
 * @see[微信官方文档](https://mp.weixin.qq.com/debug/wxadoc/dev/api/setNavigationBarColor.html)
 */
export default function set_nav_bar_color(frontColor: '#ffffff' | '#000000', backgroundColor: string, animation?: {
    duration?: number;
    timingFunc?: 'linear' | 'easeIn' | 'easeOut' | 'easeInOut';
}): Promise<boolean>;