'serialize me (only for the broker I\'m for) as the original cached reference'

def jellyFor(self, jellier):

    if (jellier.invoker is None):
        return getInstanceState(self, jellier)
    assert (jellier.invoker is self.broker), 'You    cannot    exchange    cached    proxies    between    brokers.'
    return ('lcache', self.luid)
