public DummyArticleRecommendationsProvider(
     OnArticleRecommendationAvailable onArticleRecommendationAvailable,
     ILogger <DummyArticleRecommendationsProvider> logger)
 {
     _onArticleRecommendationAvailable = onArticleRecommendationAvailable;
     _logger = logger;
     _rng    = new Random();
 }
 public IArticleRecommendationsProvider CreateArticleRecommendationsProvider(OnArticleRecommendationAvailable onArticleRecommendationAvailable)
 => new DummyArticleRecommendationsProvider(onArticleRecommendationAvailable, _loggerFactory.CreateLogger <DummyArticleRecommendationsProvider>());