public CrayonApiClientResult <SubscriptionDetailed> Update(string token, SubscriptionDetailed subscription)
        {
            Guard.NotNull(subscription, nameof(subscription));

            var uri = $"/api/v1/subscriptions/{subscription.Id}";

            return(_client.Put <SubscriptionDetailed>(token, uri, subscription));
        }
        public CrayonApiClientResult <SubscriptionDetailed> Create(string token, SubscriptionDetailed subscription)
        {
            var uri = "/api/v1/subscriptions/";

            return(_client.Post <SubscriptionDetailed>(token, uri, subscription));
        }