Get synchronously receives a single Delivery from the head of a queue from the server to the client. In almost all cases, using Channel.Consume will be preferred.
If there was a delivery waiting on the queue and that delivery was received the second return value will be true. If there was no delivery waiting or an error occured, the ok bool will be false.
All deliveries must be acknowledged including those from Channel.Get. Call Delivery.Ack on the returned delivery when you have fully processed this delivery.
When autoAck is true, the server will automatically acknowledge this message so you don't have to. But if you are unable to fully process this message before the channel or connection is closed, the message will not get requeued.