Amazon.MobileAnalytics.MobileAnalyticsManager.MobileAnalyticsManager.GetInstance C# (CSharp) Method

        public static MobileAnalyticsManager GetInstance(string appID)
        {
            if (string.IsNullOrEmpty(appID))
                throw new ArgumentNullException("appID");
            MobileAnalyticsManager managerInstance = null;

            lock (_lock)
            {
                if (_instanceDictionary.TryGetValue(appID, out managerInstance))
                {
                    return managerInstance;
                }
                else
                {
                    throw new InvalidOperationException("Cannot find MobileAnalyticsManager instance for appID " + appID + ". Please call GetOrCreateInstance() first.");
                }
            }
        }