public SubscriptionResponse(string ticker, SubscriptionFailure subscriptionFailure)
     : this(ticker, Either.Left <SubscriptionFailure, IDictionary <string, object> >(subscriptionFailure))
 {
 }
 public SubscriptionResponse(string ticker, SubscriptionFailure subscriptionFailure)
     : this(ticker, Either.Left<SubscriptionFailure, IDictionary<string, object>>(subscriptionFailure))
 {
 }