def tunnel_up(self):
        if not self.tunnel:
            return True
        # We should always return True which sends an ACK on the destruction of the tunnel
        return True
Loads the latest METAR (aviation routine weather report) for the given
dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/runtime/north/calvincontrol.py/CalvinControlTunnelClient.tunnel_up--crossover with--dataset/ETHPy150Open albatrossandco/brubeck_cms/brubeck/weather/views.py/get_weather