namespace System.Text.Unicode
{
    public static class Utf8
    {
        [EditorBrowsable(EditorBrowsableState.Never)]
        [InterpolatedStringHandler]
        public struct TryWriteInterpolatedStringHandler
        {
            public TryWriteInterpolatedStringHandler(int literalLength, int formattedCount, Span<byte> destination, IFormatProvider? provider, out bool shouldAppend);
        }
    }
}