public Task <ISubscriber> CreateSubscriber(IFastQueueClient client, string topicName, string subscriptionName)
{
return(client.CreateSubscriber(topicName, subscriptionName, async(sub, ms) =>
{
var arr = ms.ToArray();
Console.WriteLine($"({subscriptionName}) Received: Count {arr.Length}, Range {arr[0].ID} - {arr[^1].ID}, Deserialized IDs {TestMessage.Deserialize(arr[0].Body.Span).ID} - {TestMessage.Deserialize(arr[^1].Body.Span).ID}");
