def defaultSessionFactory(env={}, usePTY=False, *args, **kwargs):
    return SSHSession(env, usePTY, *args, **kwargs)
Returns the pid for prior radvd instance for a bridge/device.
dataset/ETHPy150Open sporsh/carnifex/carnifex/ssh/session.py/defaultSessionFactory--crossover with--dataset/ETHPy150Open openstack/nova/nova/network/linux_net.py/_ra_pid_for