如何确定Console.Out是否已重定向到文件？

if (Console.Out is StreamWriter writer)
{
    // Console.Out is redirected to a file.
}
else
{
    // Console.Out is not redirected to a file.
}

if (Console.IsOutputRedirected)
{
    // Console.Out is redirected to a file.
}
else
{
    // Console.Out is not redirected to a file.
}