def channel_peers(self) -> List[bytes]:
    node_ids = [chan.node_id for chan in self.channels.values() if (not chan.is_closed())]
    return node_ids
def channel_peers(self) -> List[bytes]:
    node_ids = [chan.node_id for chan in self.channels.values() if (not chan.is_closed())]
    return node_ids