def channelOpen(self, specificData):
        """
        The channel is open.  Set up the instance variables.
        """
        self.gotOpen = True
        self.specificData = specificData
        self.inBuffer = []
        self.extBuffer = []
        self.numberRequests = 0
        self.gotEOF = False
        self.gotOneClose = False
        self.gotClosed = False

        The channel is open.  Set up the instance variables.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/test/test_connection.py