def __init__(self, p):
        """
        @type p L{twisted.conch.ssh.session.SSHSessionProcessProtocol} instance
        """
        self.proto = p
        p.makeConnection(self)
        self.closed = 0

        @type p L{twisted.conch.ssh.session.SSHSessionProcessProtocol} instance
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/test/test_ssh.py