System.Security.Cryptography.KeyFormatHelper
namespace System.Security.Cryptography
{
internal static class KeyFormatHelper
{
internal delegate void KeyReader<TRet> (ReadOnlySpan<byte> key, ValueAlgorithmIdentifierAsn algId, out TRet ret);
internal delegate TRet ReadOnlySpanFunc<TIn, TRet> (ReadOnlySpan<TIn> span);
}
}