Get a :class:`list` of (ip, port) :class:`tuple` pairs suitable for
        use as an argument to the bootstrap method.

        The server should have been bootstrapped
        already - this is just a utility for getting some neighbors and then
        storing them if this server is going down for a while.  When it comes
        back up, the list of nodes can be used to bootstrap.

def bootstrappable_neighbors(self):
        """
        Get a :class:`list` of (ip, port) :class:`tuple` pairs suitable for
        use as an argument to the bootstrap method.

        The server should have been bootstrapped
        already - this is just a utility for getting some neighbors and then
        storing them if this server is going down for a while.  When it comes
        back up, the list of nodes can be used to bootstrap.
        """
        neighbors = self.protocol.router.find_neighbors(self.node)
        return [tuple(n)[-2:] for n in neighbors]