def setUp(self):
        self.conn = MockConnection()
        self.channel = channel.SSHChannel(conn=self.conn,
                remoteMaxPacket=10)
        self.channel.name = 'channel'
Receiver that is called before an observation is saved. Updates
dataset/ETHPy150Open twisted/twisted/twisted/conch/test/test_channel.py/ChannelTests.setUp--crossover with--dataset/ETHPy150Open ExCiteS/geokey/geokey/contributions/models.py/pre_save_observation_update