class ChannelVC: UIViewController,PNObjectEventListener, UITableViewDataSource, UITableViewDelegate {

    //Our Message struct, makes working with messages a little easier
    struct Message {
        var message: String
        var username: String
        var uuid: String
    }
    var messages: [Message] = []

    //Keep track of the earliest message we loaded
    var earliestMessageTime: NSNumber = -1

    //To keep track if we are already loading more messages
    var loadingMore = false

    //Our PubNub object that we will use to publish, subscribe, and get the history of our channel
    var client: PubNub!

    //Temporary values
    var channelName = "Channel Name"
    var username = "Username"

    //-- ALREADY SHOULD BE IN YOUR FILE
    //Where our messages come in
    @IBOutlet weak var messageTextField: UITextField!

    //We populated this with the information from our messages array
    @IBOutlet weak var tableView: UITableView!

    ...

}