public ExchangeRatingValuer(ExchangeStatisticsCollector statisticsCollector, IReadOnlyCollection <Exchange> exchanges)
 {
     _statisticsCollector = statisticsCollector;
     _exchanges           = exchanges;
 }
 public ExchangeCallsInterceptor(ExchangeStatisticsCollector statisticsCollector)
 {
     _statisticsCollector = statisticsCollector;
 }