namespace System
{
    [RequiresPreviewFeatures("Generic Math is in preview.", Url = "https://aka.ms/dotnet-warnings/generic-math-preview")]
    public interface ISpanParseable<TSelf> : IParseable<TSelf>
        where TSelf, ISpanParseable<TSelf>!
    {
        static bool TryParse(ReadOnlySpan<char> s, IFormatProvider? provider, out TSelf result);
    }
}