ExceptionExtensions.cs

namespace Util
{
    public static class ExceptionExtensions
    {
        public static T Unwrap<T>(this Exception exception) where T : class
        {
            return exception.InnerException?.Unwrap<T>() ?? exception as T;
        }

        public static Exception Unwrap(this Exception exception)
        {
            return exception.InnerException?.Unwrap() ?? exception;
        }
    }
}