Retry.cs

        public static void Retry<TException>(Action action, int maxAttempts, TimeSpan delay,
           Func<TException, bool> shouldRetry = null, Action<TException> exceptionLogger = null)
            where TException : Exception
        {

            Assert.Positive(maxAttempts, nameof(maxAttempts));
            Assert.NotNull(action, nameof(action));

            bool shouldRetryNotNull = shouldRetry != null;

            for (;;) // while (true)
            {
                try
                {
                    action.Invoke();
                    break;
                }
                catch (TException exception)
                {
                    if ((shouldRetryNotNull && !shouldRetry(exception)) || ZERO == (--maxAttempts))
                    {
                        throw;
                    }

                    exceptionLogger?.Invoke(exception);

                    Task.Delay(delay).Wait();
                }
            }
        }