namespace System.Security.Cryptography
{
    [EditorBrowsable(EditorBrowsableState.Never)]
    [Obsolete("RNGCryptoServiceProvider is obsolete. To generate a random number, use one of the RandomNumberGenerator static methods instead.", DiagnosticId = "SYSLIB0023", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
    public sealed class RNGCryptoServiceProvider : RandomNumberGenerator
    {
        public override void GetBytes(Span<byte> data);
    }
}