/// <summary>
/// 设置群头像
/// </summary>
/// <param name="imageFile">图片名/绝对路径/URL/base64</param>
/// <param name="useCache">是否使用缓存</param>
public async ValueTask <ApiStatus> SetGroupPortrait(string imageFile, bool useCache = true)
{
return(await SoraApi.SetGroupPortrait(Id, imageFile, useCache));
}