public OrderBooksSubscriber(
     SubscriberSettings settings,
     IPricesHandler pricesHandler,
     PriceType priceType,
     ILogger <OrderBooksSubscriber> logger)
 {
     _settings      = settings;
     _pricesHandler = pricesHandler;
     _priceType     = priceType;
     _logger        = logger;
 }
 public PriceHandlerTests()
 {
     _handler = new PricesHandler(_candleServiceMock.Object);
 }