public static void SendColdReservation(string queueName, string containerName)
        {
            var sendTask = QueueProvider.AddMessage(
                queueName: queueName,
                message: new ExecutionAvailability
            {
                CallbackURI = string.Format(
                    format: ServerlessConfiguration.ExecutionTemplate,
                    arg0: containerName)
            });

            MemoryProvider.SendTasks[containerName][sendTask] = true;

            foreach (var task in MemoryProvider.SendTasks[containerName].Keys.Where(task => task.IsCompleted))
            {
                bool boolean;
                MemoryProvider.SendTasks[containerName].TryRemove(task, out boolean);
            }
        }