 
     channelName = "instance-#{token}"
 
+    return callback null, @channels[channelName]  if @channels[channelName]
+
     # just create a channel for instance event reception
     channelInstance = new PubnubChannel name: channelName
 

            return @channels[channel].emit eventName, body

          events = eventName.split "."
          instanceChannel = events[0]
          eventName = events[1]
          @channels[instanceChannel].emit eventName, body




          {eventName, body, eventId} = message

          return  unless eventName and body

          if eventId?
            return  if @eventCache[eventId]

            # TODO delete this periodically
            @eventCache[eventId] = yes


          # when a user is connected in two browsers, and leaves a channel, in second one
          # they receive RemovedFromChannel event for their own. Therefore we must unsubscribe
