/// <summary>
/// Writes a <paramref name="value"/> into <paramref name="destination"/> and then 'advances'.
/// </summary>
/// <exception cref="IndexOutOfRangeException">Thrown if the <paramref name="value"/> does not fit into the <paramref name="destination"/>.</exception>
public static void WriteUTF8(this IHFormat format, ref Span <byte> destination, ReadOnlySpan <char> value)
{
format.WriteUTF8(destination, value, out int bytesWritten);
destination = destination.Slice(bytesWritten);
}