def take(key)
      queue = queues(key)
      if queue.nil? || queue.length == 0
        @stats[:get_misses] += 1
        return nil
      else
        @stats[:get_hits] += 1
      end
      result = queue.pop
      @stats[:current_bytes] -= result.size
      result
    end
def take(key)
      queue = queues(key)
      if queue.nil? || queue.length == 0
        @stats[:get_misses] += 1
        return nil
      else
        @stats[:get_hits] += 1
      end
      result = queue.pop
      @stats[:current_bytes] -= result.size
      result
    end
Retrieves data from the queue named +key+