 ///A ChatRoom represents a Stack Exchange chat room.
 open class ChatRoom: NSObject {
 	//MARK: - Instance variables
-	let queue: DispatchQueue
 	
 	///A type of event from the chat room.
 	public enum ChatEvent: Int {

	private var timestamp: Int = 0
	
	
	private var recievedMessage = false
	
	private var pendingLookup = [ChatUser]()
	

		}
		messageQueue.append((message, completion))
		if messageQueue.count == 1 {
			client.queue.async {
				self.messageQueueHandler()
			}
		}
