<PackageReference Include="Microsoft.IdentityModel.Tokens" Version="8.16.0" />

Microsoft.IdentityModel.Tokens.Experimental.MessageDetail

public class MessageDetail
Contains information about a message that is used to generate a message for logging or exceptions.
namespace Microsoft.IdentityModel.Tokens.Experimental { public class MessageDetail { public string Message { get; } public MessageDetail(string message); public MessageDetail(string formatString, params object[] parameters); public static MessageDetail NullParameter(string parameterName); } }