koishi-plugin-wifegacha/lib/utils/getWavFlieName.d.ts

抽老婆，详情请查看[readme.md](https://github.com/Bear-biscuit/koishi-plugin-wifegacha/blob/main/README.md)

/**
 * 从指定文件夹中随机选择一个WAV文件
 * @param {string} folderPath 文件夹路径
 * @returns {string|null} 随机选择的WAV文件名，如果没有WAV文件则返回null
 */
export declare function getRandomWavFile(folderPath: string): string;